diff --git a/.gitignore b/.gitignore
index af7e18beae..dc4087e488 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,6 +33,10 @@ bin/*.db-journal
 bin/addin-db-*
 bin/*.dll
 bin/OpenSim.vshost.exe.config
+bin/OpenSim.32BitLaunch.vshost.exe.config
+bin/OpenSim.32BitLaunch.log
+UpgradeLog.XML
+_UpgradeReport_Files/
 bin/ScriptEngines/*-*-*-*-*
 bin/ScriptEngines/*.dll
 bin/ScriptEngines/*/*.dll
diff --git a/OpenSim/Data/IXInventoryData.cs b/OpenSim/Data/IXInventoryData.cs
index 85a5c08d37..e64a82820d 100644
--- a/OpenSim/Data/IXInventoryData.cs
+++ b/OpenSim/Data/IXInventoryData.cs
@@ -40,6 +40,11 @@ namespace OpenSim.Data
         public UUID folderID;
         public UUID agentID;
         public UUID parentFolderID;
+
+        public XInventoryFolder Clone()
+        {
+            return (XInventoryFolder)MemberwiseClone();
+        }
     }
 
     public class XInventoryItem
@@ -64,6 +69,11 @@ namespace OpenSim.Data
         public UUID avatarID;
         public UUID parentFolderID;
         public int inventoryGroupPermissions;
+
+        public XInventoryItem Clone()
+        {
+            return (XInventoryItem)MemberwiseClone();
+        }
     }
 
     public interface IXInventoryData
diff --git a/OpenSim/Framework/InventoryFolderBase.cs b/OpenSim/Framework/InventoryFolderBase.cs
index a12183c535..b3457a65b9 100644
--- a/OpenSim/Framework/InventoryFolderBase.cs
+++ b/OpenSim/Framework/InventoryFolderBase.cs
@@ -73,33 +73,27 @@ namespace OpenSim.Framework
         {
         }
 
-        public InventoryFolderBase(UUID id)
+        public InventoryFolderBase(UUID id) : this()
         {
             ID = id;
         }
 
-        public InventoryFolderBase(UUID id, UUID owner)
+        public InventoryFolderBase(UUID id, UUID owner) : this(id)
         {
-            ID = id;
             Owner = owner;
         }
 
-        public InventoryFolderBase(UUID id, string name, UUID owner, UUID parent)
+        public InventoryFolderBase(UUID id, string name, UUID owner, UUID parent) : this(id, owner)
         {
-            ID = id;
             Name = name;
-            Owner = owner;
             ParentID = parent;
         }
 
-        public InventoryFolderBase(UUID id, string name, UUID owner, short type, UUID parent, ushort version)
+        public InventoryFolderBase(
+            UUID id, string name, UUID owner, short type, UUID parent, ushort version) : this(id, name, owner, parent)
         {
-            ID = id;
-            Name = name;
-            Owner = owner;
             Type = type;
-            ParentID = parent;
             Version = version;
         }
     }
-}
+}
\ No newline at end of file
diff --git a/OpenSim/Framework/Serialization/External/OspResolver.cs b/OpenSim/Framework/Serialization/External/OspResolver.cs
index d31d27c4a6..fa7160f874 100644
--- a/OpenSim/Framework/Serialization/External/OspResolver.cs
+++ b/OpenSim/Framework/Serialization/External/OspResolver.cs
@@ -65,9 +65,14 @@ namespace OpenSim.Framework.Serialization
 
             UserAccount account = userService.GetUserAccount(UUID.Zero, userId);
             if (account != null)
+            {
                 return MakeOspa(account.FirstName, account.LastName);
+            }
 //            else
+//            {
 //                m_log.WarnFormat("[OSP RESOLVER]: No user account for {0}", userId);
+//                System.Console.WriteLine("[OSP RESOLVER]: No user account for {0}", userId);
+//            }
 
             return null;
         }
@@ -79,10 +84,13 @@ namespace OpenSim.Framework.Serialization
         /// <returns></returns>
         public static string MakeOspa(string firstName, string lastName)
         {
-//            m_log.DebugFormat("[OSP RESOLVER]: Making OSPA for {0} {1}", firstName, lastName);
+            string ospa
+                = OSPA_PREFIX + OSPA_NAME_KEY + OSPA_PAIR_SEPARATOR + firstName + OSPA_NAME_VALUE_SEPARATOR + lastName;
+
+//            m_log.DebugFormat("[OSP RESOLVER]: Made OSPA {0} for {1} {2}", ospa, firstName, lastName);
+//            System.Console.WriteLine("[OSP RESOLVER]: Made OSPA {0} for {1} {2}", ospa, firstName, lastName);
             
-            return 
-                OSPA_PREFIX + OSPA_NAME_KEY + OSPA_PAIR_SEPARATOR + firstName + OSPA_NAME_VALUE_SEPARATOR + lastName;
+            return ospa;
         }
         
         /// <summary>
diff --git a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiverTests.cs b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiverTests.cs
index b112b6db52..12a05b3df5 100644
--- a/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiverTests.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Inventory/Archiver/Tests/InventoryArchiverTests.cs
@@ -350,38 +350,38 @@ namespace OpenSim.Region.CoreModules.Avatar.Inventory.Archiver.Tests
             Assert.That(sog1.RootPart.CreatorID, Is.EqualTo(m_uaLL1.PrincipalID));            
         }
         
-        /// <summary>
-        /// Test loading a V0.1 OpenSim Inventory Archive (subject to change since there is no fixed format yet) where
-        /// an account exists with the same name as the creator, though not the same id.
-        /// </summary>
-        [Test]
-        public void TestLoadIarV0_1SameNameCreator()
-        {
-            TestHelpers.InMethod();
-//            log4net.Config.XmlConfigurator.Configure();
-
-            UserAccountHelpers.CreateUserWithInventory(m_scene, m_uaMT, "meowfood");
-            UserAccountHelpers.CreateUserWithInventory(m_scene, m_uaLL2, "hampshire");
-            
-            m_archiverModule.DearchiveInventory(m_uaMT.FirstName, m_uaMT.LastName, "/", "meowfood", m_iarStream);            
-            InventoryItemBase foundItem1
-                = InventoryArchiveUtils.FindItemByPath(m_scene.InventoryService, m_uaMT.PrincipalID, m_item1Name);
-
-            Assert.That(
-                foundItem1.CreatorId, Is.EqualTo(m_uaLL2.PrincipalID.ToString()), 
-                "Loaded item non-uuid creator doesn't match original");            
-            Assert.That(
-                foundItem1.CreatorIdAsUuid, Is.EqualTo(m_uaLL2.PrincipalID), 
-                "Loaded item uuid creator doesn't match original");
-            Assert.That(foundItem1.Owner, Is.EqualTo(m_uaMT.PrincipalID),
-                "Loaded item owner doesn't match inventory reciever");
-            
-            AssetBase asset1 = m_scene.AssetService.Get(foundItem1.AssetID.ToString());            
-            string xmlData = Utils.BytesToString(asset1.Data);
-            SceneObjectGroup sog1 = SceneObjectSerializer.FromOriginalXmlFormat(xmlData);
-            
-            Assert.That(sog1.RootPart.CreatorID, Is.EqualTo(m_uaLL2.PrincipalID));
-        }
+//        /// <summary>
+//        /// Test loading a V0.1 OpenSim Inventory Archive (subject to change since there is no fixed format yet) where
+//        /// an account exists with the same name as the creator, though not the same id.
+//        /// </summary>
+//        [Test]
+//        public void TestLoadIarV0_1SameNameCreator()
+//        {
+//            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+//
+//            UserAccountHelpers.CreateUserWithInventory(m_scene, m_uaMT, "meowfood");
+//            UserAccountHelpers.CreateUserWithInventory(m_scene, m_uaLL2, "hampshire");
+//            
+//            m_archiverModule.DearchiveInventory(m_uaMT.FirstName, m_uaMT.LastName, "/", "meowfood", m_iarStream);            
+//            InventoryItemBase foundItem1
+//                = InventoryArchiveUtils.FindItemByPath(m_scene.InventoryService, m_uaMT.PrincipalID, m_item1Name);
+//
+//            Assert.That(
+//                foundItem1.CreatorId, Is.EqualTo(m_uaLL2.PrincipalID.ToString()), 
+//                "Loaded item non-uuid creator doesn't match original");            
+//            Assert.That(
+//                foundItem1.CreatorIdAsUuid, Is.EqualTo(m_uaLL2.PrincipalID), 
+//                "Loaded item uuid creator doesn't match original");
+//            Assert.That(foundItem1.Owner, Is.EqualTo(m_uaMT.PrincipalID),
+//                "Loaded item owner doesn't match inventory reciever");
+//            
+//            AssetBase asset1 = m_scene.AssetService.Get(foundItem1.AssetID.ToString());            
+//            string xmlData = Utils.BytesToString(asset1.Data);
+//            SceneObjectGroup sog1 = SceneObjectSerializer.FromOriginalXmlFormat(xmlData);
+//            
+//            Assert.That(sog1.RootPart.CreatorID, Is.EqualTo(m_uaLL2.PrincipalID));
+//        }
 
         /// <summary>
         /// Test loading a V0.1 OpenSim Inventory Archive (subject to change since there is no fixed format yet) where
diff --git a/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTextureModule.cs b/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTextureModule.cs
index 18bd0186b8..13b74983b1 100644
--- a/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTextureModule.cs
+++ b/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTextureModule.cs
@@ -49,6 +49,11 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
         public const int DISP_EXPIRE = 1;
         public const int DISP_TEMP   = 2;
 
+        /// <summary>
+        /// If true then where possible dynamic textures are reused.
+        /// </summary>
+        public bool ReuseTextures { get; set; }
+
         private Dictionary<UUID, Scene> RegisteredScenes = new Dictionary<UUID, Scene>();
 
         private Dictionary<string, IDynamicTextureRender> RenderPlugins =
@@ -56,6 +61,15 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
 
         private Dictionary<UUID, DynamicTextureUpdater> Updaters = new Dictionary<UUID, DynamicTextureUpdater>();
 
+        /// <summary>
+        /// Record dynamic textures that we can reuse for a given data and parameter combination rather than
+        /// regenerate.
+        /// </summary>
+        /// <remarks>
+        /// Key is string.Format("{0}{1}", data
+        /// </remarks>
+        private Cache m_reuseableDynamicTextures;
+
         #region IDynamicTextureManager Members
 
         public void RegisterRender(string handleType, IDynamicTextureRender render)
@@ -71,7 +85,8 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
         /// </summary>
         /// <param name="id"></param>
         /// <param name="data"></param>
-        public void ReturnData(UUID id, byte[] data)
+        /// <param name="isReuseable">True if the data generated can be reused for subsequent identical requests</param>
+        public void ReturnData(UUID id, byte[] data, bool isReuseable)
         {
             DynamicTextureUpdater updater = null;
 
@@ -88,7 +103,11 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
                 if (RegisteredScenes.ContainsKey(updater.SimUUID))
                 {
                     Scene scene = RegisteredScenes[updater.SimUUID];
-                    updater.DataReceived(data, scene);
+                    UUID newTextureID = updater.DataReceived(data, scene);
+
+                    if (ReuseTextures && isReuseable && !updater.BlendWithOldTexture)
+                        m_reuseableDynamicTextures.Store(
+                            GenerateReusableTextureKey(updater.BodyData, updater.Params), newTextureID);
                 }
             }
 
@@ -169,6 +188,11 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
         {
             if (RenderPlugins.ContainsKey(contentType))
             {
+                // If we want to reuse dynamic textures then we have to ignore any request from the caller to expire
+                // them.
+                if (ReuseTextures)
+                    disp = disp & ~DISP_EXPIRE;
+
                 DynamicTextureUpdater updater = new DynamicTextureUpdater();
                 updater.SimUUID = simID;
                 updater.PrimID = primID;
@@ -183,21 +207,49 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
                 updater.Url = "Local image";
                 updater.Disp = disp;
 
-                lock (Updaters)
+                object reusableTextureUUID = null;
+
+                if (ReuseTextures)
+                    reusableTextureUUID
+                        = m_reuseableDynamicTextures.Get(GenerateReusableTextureKey(data, extraParams));
+
+                // We cannot reuse a dynamic texture if the data is going to be blended with something already there.
+                if (reusableTextureUUID == null || updater.BlendWithOldTexture)
                 {
-                    if (!Updaters.ContainsKey(updater.UpdaterID))
+                    lock (Updaters)
                     {
-                        Updaters.Add(updater.UpdaterID, updater);
+                        if (!Updaters.ContainsKey(updater.UpdaterID))
+                        {
+                            Updaters.Add(updater.UpdaterID, updater);
+                        }
+                    }
+
+                    RenderPlugins[contentType].AsyncConvertData(updater.UpdaterID, data, extraParams);
+                }
+                else
+                {
+                    // No need to add to updaters as the texture is always the same.  Not that this functionality
+                    // apppears to be implemented anyway.
+                    if (RegisteredScenes.ContainsKey(updater.SimUUID))
+                    {
+                        SceneObjectPart part = RegisteredScenes[updater.SimUUID].GetSceneObjectPart(updater.PrimID);
+
+                        if (part != null)
+                            updater.UpdatePart(part, (UUID)reusableTextureUUID);
                     }
                 }
 
-                RenderPlugins[contentType].AsyncConvertData(updater.UpdaterID, data, extraParams);
                 return updater.UpdaterID;
             }
             
             return UUID.Zero;
         }
 
+        private string GenerateReusableTextureKey(string data, string extraParams)
+        {
+            return string.Format("{0}{1}", data, extraParams);
+        }
+
         public void GetDrawStringSize(string contentType, string text, string fontName, int fontSize,
                                       out double xSize, out double ySize)
         {
@@ -224,6 +276,12 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
 
         public void PostInitialise()
         {
+//            ReuseTextures = true;
+            if (ReuseTextures)
+            {
+                m_reuseableDynamicTextures = new Cache(CacheMedium.Memory, CacheStrategy.Conservative);
+                m_reuseableDynamicTextures.DefaultTTL = new TimeSpan(24, 0, 0);
+            }
         }
 
         public void Close()
@@ -268,10 +326,61 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
                 BodyData = null;
             }
 
+            /// <summary>
+            /// Update the given part with the new texture.
+            /// </summary>
+            /// <returns>
+            /// The old texture UUID.
+            /// </returns>
+            public UUID UpdatePart(SceneObjectPart part, UUID textureID)
+            {
+                UUID oldID;
+
+                lock (part)
+                {
+                    // mostly keep the values from before
+                    Primitive.TextureEntry tmptex = part.Shape.Textures;
+
+                    // FIXME: Need to return the appropriate ID if only a single face is replaced.
+                    oldID = tmptex.DefaultTexture.TextureID;
+
+                    if (Face == ALL_SIDES)
+                    {
+                        oldID = tmptex.DefaultTexture.TextureID;
+                        tmptex.DefaultTexture.TextureID = textureID;
+                    }
+                    else
+                    {
+                        try
+                        {
+                            Primitive.TextureEntryFace texface = tmptex.CreateFace((uint)Face);
+                            texface.TextureID = textureID;
+                            tmptex.FaceTextures[Face] = texface;
+                        }
+                        catch (Exception)
+                        {
+                            tmptex.DefaultTexture.TextureID = textureID;
+                        }
+                    }
+
+                    // I'm pretty sure we always want to force this to true
+                    // I'm pretty sure noone whats to set fullbright true if it wasn't true before.
+                    // tmptex.DefaultTexture.Fullbright = true;
+
+                    part.UpdateTextureEntry(tmptex.GetBytes());
+                }
+
+                return oldID;
+            }
+
             /// <summary>
             /// Called once new texture data has been received for this updater.
             /// </summary>
-            public void DataReceived(byte[] data, Scene scene)
+            /// <param name="data"></param>
+            /// <param name="scene"></param>
+            /// <param name="isReuseable">True if the data given is reuseable.</param>
+            /// <returns>The asset UUID given to the incoming data.</returns>
+            public UUID DataReceived(byte[] data, Scene scene)
             {
                 SceneObjectPart part = scene.GetSceneObjectPart(PrimID);
 
@@ -281,7 +390,8 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
                         String.Format("DynamicTextureModule: Error preparing image using URL {0}", Url);
                     scene.SimChat(Utils.StringToBytes(msg), ChatTypeEnum.Say,
                                   0, part.ParentGroup.RootPart.AbsolutePosition, part.Name, part.UUID, false);
-                    return;
+                    
+                    return UUID.Zero;
                 }
 
                 byte[] assetData = null;
@@ -323,52 +433,23 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
                     cacheLayerDecode = null;
                 }
 
-                UUID oldID = UUID.Zero;
-
-                lock (part)
-                {
-                    // mostly keep the values from before
-                    Primitive.TextureEntry tmptex = part.Shape.Textures;
-
-                    // remove the old asset from the cache
-                    oldID = tmptex.DefaultTexture.TextureID;
-                    
-                    if (Face == ALL_SIDES)
-                    {
-                        tmptex.DefaultTexture.TextureID = asset.FullID;
-                    }
-                    else
-                    {
-                        try
-                        {
-                            Primitive.TextureEntryFace texface = tmptex.CreateFace((uint)Face);
-                            texface.TextureID = asset.FullID;
-                            tmptex.FaceTextures[Face] = texface;
-                        }
-                        catch (Exception)
-                        {
-                            tmptex.DefaultTexture.TextureID = asset.FullID;
-                        }
-                    }
-
-                    // I'm pretty sure we always want to force this to true
-                    // I'm pretty sure noone whats to set fullbright true if it wasn't true before.
-                    // tmptex.DefaultTexture.Fullbright = true;
-
-                    part.UpdateTextureEntry(tmptex.GetBytes());
-                }
+                UUID oldID = UpdatePart(part, asset.FullID);
 
                 if (oldID != UUID.Zero && ((Disp & DISP_EXPIRE) != 0))
                 {
-                    if (oldAsset == null) oldAsset = scene.AssetService.Get(oldID.ToString());
+                    if (oldAsset == null)
+                        oldAsset = scene.AssetService.Get(oldID.ToString());
+
                     if (oldAsset != null)
                     {
-                        if (oldAsset.Temporary == true)
+                        if (oldAsset.Temporary)
                         {
                             scene.AssetService.Delete(oldID.ToString());
                         }
                     }
                 }
+
+                return asset.FullID;
             }
 
             private byte[] BlendTextures(byte[] frontImage, byte[] backImage, bool setNewAlpha, byte newAlpha)
diff --git a/OpenSim/Region/CoreModules/Scripting/LoadImageURL/LoadImageURLModule.cs b/OpenSim/Region/CoreModules/Scripting/LoadImageURL/LoadImageURLModule.cs
index 6f839485ec..2b3a0f29ff 100644
--- a/OpenSim/Region/CoreModules/Scripting/LoadImageURL/LoadImageURLModule.cs
+++ b/OpenSim/Region/CoreModules/Scripting/LoadImageURL/LoadImageURLModule.cs
@@ -67,12 +67,18 @@ namespace OpenSim.Region.CoreModules.Scripting.LoadImageURL
             return true;
         }
 
+//        public bool AlwaysIdenticalConversion(string bodyData, string extraParams)
+//        {
+//            // We don't support conversion of body data.
+//            return false;
+//        }
+
         public byte[] ConvertUrl(string url, string extraParams)
         {
             return null;
         }
 
-        public byte[] ConvertStream(Stream data, string extraParams)
+        public byte[] ConvertData(string bodyData, string extraParams)
         {
             return null;
         }
@@ -236,9 +242,11 @@ namespace OpenSim.Region.CoreModules.Scripting.LoadImageURL
                     stream.Close();
                 }
             }
+
             m_log.DebugFormat("[LOADIMAGEURLMODULE] Returning {0} bytes of image data for request {1}",
                                        imageJ2000.Length, state.RequestID);
-            m_textureManager.ReturnData(state.RequestID, imageJ2000);
+
+            m_textureManager.ReturnData(state.RequestID, imageJ2000, false);
         }
 
         #region Nested type: RequestState
diff --git a/OpenSim/Region/CoreModules/Scripting/VectorRender/Tests/VectorRenderModuleTests.cs b/OpenSim/Region/CoreModules/Scripting/VectorRender/Tests/VectorRenderModuleTests.cs
index 9787c8c173..b50c0bd7cd 100644
--- a/OpenSim/Region/CoreModules/Scripting/VectorRender/Tests/VectorRenderModuleTests.cs
+++ b/OpenSim/Region/CoreModules/Scripting/VectorRender/Tests/VectorRenderModuleTests.cs
@@ -45,31 +45,250 @@ using OpenSim.Tests.Common.Mock;
 namespace OpenSim.Region.CoreModules.Scripting.VectorRender.Tests
 {
     [TestFixture]
-    public class VectorRenderModuleTests
+    public class VectorRenderModuleTests : OpenSimTestCase
     {
+        Scene m_scene;
+        DynamicTextureModule m_dtm;
+        VectorRenderModule m_vrm;
+
+        private void SetupScene(bool reuseTextures)
+        {
+            m_scene = new SceneHelpers().SetupScene();
+
+            m_dtm = new DynamicTextureModule();
+            m_dtm.ReuseTextures = reuseTextures;
+
+            m_vrm = new VectorRenderModule();
+
+            SceneHelpers.SetupSceneModules(m_scene, m_dtm, m_vrm);
+        }
+
         [Test]
         public void TestDraw()
         {
             TestHelpers.InMethod();
 
-            Scene scene = new SceneHelpers().SetupScene();
-            DynamicTextureModule dtm = new DynamicTextureModule();
-            VectorRenderModule vrm = new VectorRenderModule();
-            SceneHelpers.SetupSceneModules(scene, dtm, vrm);
-
-            SceneObjectGroup so = SceneHelpers.AddSceneObject(scene);
+            SetupScene(false);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
             UUID originalTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
 
-            dtm.AddDynamicTextureData(
-                scene.RegionInfo.RegionID,
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
                 so.UUID,
-                vrm.GetContentType(),
+                m_vrm.GetContentType(),
                 "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;",
                 "",
                 0);
 
+            Assert.That(originalTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
+
+        [Test]
+        public void TestRepeatSameDraw()
+        {
+            TestHelpers.InMethod();
+
+            string dtText = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;";
+
+            SetupScene(false);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
+
+        [Test]
+        public void TestRepeatSameDrawDifferentExtraParams()
+        {
+            TestHelpers.InMethod();
+
+            string dtText = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;";
+
+            SetupScene(false);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "alpha:250",
+                0);
+
+            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
+
+        [Test]
+        public void TestRepeatSameDrawContainingImage()
+        {
+            TestHelpers.InMethod();
+
+            string dtText
+                = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World; Image http://localhost/shouldnotexist.png";
+
+            SetupScene(false);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
+
+        [Test]
+        public void TestDrawReusingTexture()
+        {
+            TestHelpers.InMethod();
+
+            SetupScene(true);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+            UUID originalTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;",
+                "",
+                0);
 
             Assert.That(originalTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
         }
+
+        [Test]
+        public void TestRepeatSameDrawReusingTexture()
+        {
+            TestHelpers.InMethod();
+
+            string dtText = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;";
+
+            SetupScene(true);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            Assert.That(firstDynamicTextureID, Is.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
+
+        [Test]
+        public void TestRepeatSameDrawDifferentExtraParamsReusingTexture()
+        {
+            TestHelpers.InMethod();
+
+            string dtText = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;";
+
+            SetupScene(true);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "alpha:250",
+                0);
+
+            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
+
+        [Test]
+        public void TestRepeatSameDrawContainingImageReusingTexture()
+        {
+            TestHelpers.InMethod();
+
+            string dtText
+                = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World; Image http://localhost/shouldnotexist.png";
+
+            SetupScene(true);
+            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;
+
+            m_dtm.AddDynamicTextureData(
+                m_scene.RegionInfo.RegionID,
+                so.UUID,
+                m_vrm.GetContentType(),
+                dtText,
+                "",
+                0);
+
+            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
+        }
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/CoreModules/Scripting/VectorRender/VectorRenderModule.cs b/OpenSim/Region/CoreModules/Scripting/VectorRender/VectorRenderModule.cs
index 05eaaeceb0..f687646e76 100644
--- a/OpenSim/Region/CoreModules/Scripting/VectorRender/VectorRenderModule.cs
+++ b/OpenSim/Region/CoreModules/Scripting/VectorRender/VectorRenderModule.cs
@@ -30,6 +30,7 @@ using System.Drawing;
 using System.Drawing.Imaging;
 using System.Globalization;
 using System.IO;
+using System.Linq;
 using System.Net;
 using Nini.Config;
 using OpenMetaverse;
@@ -47,7 +48,6 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
-        private string m_name = "VectorRenderModule";
         private Scene m_scene;
         private IDynamicTextureManager m_textureManager;
         private Graphics m_graph;
@@ -61,12 +61,12 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
 
         public string GetContentType()
         {
-            return ("vector");
+            return "vector";
         }
 
         public string GetName()
         {
-            return m_name;
+            return Name;
         }
 
         public bool SupportsAsynchronous()
@@ -74,14 +74,26 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
             return true;
         }
 
+//        public bool AlwaysIdenticalConversion(string bodyData, string extraParams)
+//        {
+//            string[] lines = GetLines(bodyData);
+//            return lines.Any((str, r) => str.StartsWith("Image"));
+//        }
+
         public byte[] ConvertUrl(string url, string extraParams)
         {
             return null;
         }
 
-        public byte[] ConvertStream(Stream data, string extraParams)
+        public byte[] ConvertData(string bodyData, string extraParams)
         {
-            return null;
+            bool reuseable;
+            return Draw(bodyData, extraParams, out reuseable);
+        }
+
+        private byte[] ConvertData(string bodyData, string extraParams, out bool reuseable)
+        {
+            return Draw(bodyData, extraParams, out reuseable);
         }
 
         public bool AsyncConvertUrl(UUID id, string url, string extraParams)
@@ -91,7 +103,12 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
 
         public bool AsyncConvertData(UUID id, string bodyData, string extraParams)
         {
-            Draw(bodyData, id, extraParams);
+            // XXX: This isn't actually being done asynchronously!
+            bool reuseable;
+            byte[] data = ConvertData(bodyData, extraParams, out reuseable);
+
+            m_textureManager.ReturnData(id, data, reuseable);
+
             return true;
         }
 
@@ -152,7 +169,7 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
 
         public string Name
         {
-            get { return m_name; }
+            get { return "VectorRenderModule"; }
         }
 
         public bool IsSharedModule
@@ -162,7 +179,7 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
 
         #endregion
 
-        private void Draw(string data, UUID id, string extraParams)
+        private byte[] Draw(string data, string extraParams, out bool reuseable)
         {
             // We need to cater for old scripts that didnt use extraParams neatly, they use either an integer size which represents both width and height, or setalpha
             // we will now support multiple comma seperated params in the form  width:256,height:512,alpha:255
@@ -343,7 +360,7 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
                         }
                     }
         
-                    GDIDraw(data, graph, altDataDelim);
+                    GDIDraw(data, graph, altDataDelim, out reuseable);
                 }
     
                 byte[] imageJ2000 = new byte[0];
@@ -359,7 +376,7 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
                         e.Message, e.StackTrace);
                 }
 
-                m_textureManager.ReturnData(id, imageJ2000);
+                return imageJ2000;
             }
             finally
             {
@@ -434,8 +451,21 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
         }
 */
 
-        private void GDIDraw(string data, Graphics graph, char dataDelim)
+        /// <summary>
+        /// Split input data into discrete command lines.
+        /// </summary>
+        /// <returns></returns>
+        /// <param name='data'></param>
+        /// <param name='dataDelim'></param>
+        private string[] GetLines(string data, char dataDelim)
         {
+            char[] lineDelimiter = { dataDelim };
+            return data.Split(lineDelimiter);
+        }
+
+        private void GDIDraw(string data, Graphics graph, char dataDelim, out bool reuseable)
+        {
+            reuseable = true;
             Point startPoint = new Point(0, 0);
             Point endPoint = new Point(0, 0);
             Pen drawPen = null;
@@ -450,11 +480,9 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
                 myFont = new Font(fontName, fontSize);
                 myBrush = new SolidBrush(Color.Black);
 
-                char[] lineDelimiter = {dataDelim};
                 char[] partsDelimiter = {','};
-                string[] lines = data.Split(lineDelimiter);
 
-                foreach (string line in lines)
+                foreach (string line in GetLines(data, dataDelim))
                 {
                     string nextLine = line.Trim();
                     //replace with switch, or even better, do some proper parsing
@@ -485,6 +513,10 @@ namespace OpenSim.Region.CoreModules.Scripting.VectorRender
                     }
                     else if (nextLine.StartsWith("Image"))
                     {
+                        // We cannot reuse any generated texture involving fetching an image via HTTP since that image
+                        // can change.
+                        reuseable = false;
+
                         float x = 0;
                         float y = 0;
                         GetParams(partsDelimiter, ref nextLine, 5, ref x, ref y);
diff --git a/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs b/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs
index 402b9fb0fe..d99567cd4b 100644
--- a/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs
+++ b/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs
@@ -414,6 +414,7 @@ namespace OpenSim.Region.CoreModules.World.Terrain
         private void LoadPlugins()
         {
             m_plugineffects = new Dictionary<string, ITerrainEffect>();
+            LoadPlugins(Assembly.GetCallingAssembly());
             string plugineffectsPath = "Terrain";
             
             // Load the files in the Terrain/ dir
@@ -427,32 +428,7 @@ namespace OpenSim.Region.CoreModules.World.Terrain
                 try
                 {
                     Assembly library = Assembly.LoadFrom(file);
-                    foreach (Type pluginType in library.GetTypes())
-                    {
-                        try
-                        {
-                            if (pluginType.IsAbstract || pluginType.IsNotPublic)
-                                continue;
-
-                            string typeName = pluginType.Name;
-
-                            if (pluginType.GetInterface("ITerrainEffect", false) != null)
-                            {
-                                ITerrainEffect terEffect = (ITerrainEffect) Activator.CreateInstance(library.GetType(pluginType.ToString()));
-
-                                InstallPlugin(typeName, terEffect);
-                            }
-                            else if (pluginType.GetInterface("ITerrainLoader", false) != null)
-                            {
-                                ITerrainLoader terLoader = (ITerrainLoader) Activator.CreateInstance(library.GetType(pluginType.ToString()));
-                                m_loaders[terLoader.FileExtension] = terLoader;
-                                m_log.Info("L ... " + typeName);
-                            }
-                        }
-                        catch (AmbiguousMatchException)
-                        {
-                        }
-                    }
+                    LoadPlugins(library);
                 }
                 catch (BadImageFormatException)
                 {
@@ -460,6 +436,36 @@ namespace OpenSim.Region.CoreModules.World.Terrain
             }
         }
 
+        private void LoadPlugins(Assembly library)
+        {
+            foreach (Type pluginType in library.GetTypes())
+            {
+                try
+                {
+                    if (pluginType.IsAbstract || pluginType.IsNotPublic)
+                        continue;
+
+                    string typeName = pluginType.Name;
+
+                    if (pluginType.GetInterface("ITerrainEffect", false) != null)
+                    {
+                        ITerrainEffect terEffect = (ITerrainEffect)Activator.CreateInstance(library.GetType(pluginType.ToString()));
+
+                        InstallPlugin(typeName, terEffect);
+                    }
+                    else if (pluginType.GetInterface("ITerrainLoader", false) != null)
+                    {
+                        ITerrainLoader terLoader = (ITerrainLoader)Activator.CreateInstance(library.GetType(pluginType.ToString()));
+                        m_loaders[terLoader.FileExtension] = terLoader;
+                        m_log.Info("L ... " + typeName);
+                    }
+                }
+                catch (AmbiguousMatchException)
+                {
+                }
+            }
+        }
+
         public void InstallPlugin(string pluginName, ITerrainEffect effect)
         {
             lock (m_plugineffects)
@@ -1178,7 +1184,8 @@ namespace OpenSim.Region.CoreModules.World.Terrain
 
         private void InterfaceRunPluginEffect(Object[] args)
         {
-            if ((string) args[0] == "list")
+            string firstArg = (string)args[0];
+            if (firstArg == "list")
             {
                 m_log.Info("List of loaded plugins");
                 foreach (KeyValuePair<string, ITerrainEffect> kvp in m_plugineffects)
@@ -1187,14 +1194,14 @@ namespace OpenSim.Region.CoreModules.World.Terrain
                 }
                 return;
             }
-            if ((string) args[0] == "reload")
+            if (firstArg == "reload")
             {
                 LoadPlugins();
                 return;
             }
-            if (m_plugineffects.ContainsKey((string) args[0]))
+            if (m_plugineffects.ContainsKey(firstArg))
             {
-                m_plugineffects[(string) args[0]].RunEffect(m_channel);
+                m_plugineffects[firstArg].RunEffect(m_channel);
                 CheckForTerrainUpdates();
             }
             else
diff --git a/OpenSim/Region/Framework/Interfaces/IDynamicTextureManager.cs b/OpenSim/Region/Framework/Interfaces/IDynamicTextureManager.cs
index 8954513c06..1a3bcbbc71 100644
--- a/OpenSim/Region/Framework/Interfaces/IDynamicTextureManager.cs
+++ b/OpenSim/Region/Framework/Interfaces/IDynamicTextureManager.cs
@@ -33,7 +33,7 @@ namespace OpenSim.Region.Framework.Interfaces
     public interface IDynamicTextureManager
     {
         void RegisterRender(string handleType, IDynamicTextureRender render);
-        void ReturnData(UUID id, byte[] data);
+        void ReturnData(UUID id, byte[] data, bool isReuseable);
 
         UUID AddDynamicTextureURL(UUID simID, UUID primID, string contentType, string url, string extraParams,
                                     int updateTimer);
@@ -113,8 +113,20 @@ namespace OpenSim.Region.Framework.Interfaces
         string GetName();
         string GetContentType();
         bool SupportsAsynchronous();
+
+//        /// <summary>
+//        /// Return true if converting the input body and extra params data will always result in the same byte[] array
+//        /// </summary>
+//        /// <remarks>
+//        /// This method allows the caller to use a previously generated asset if it has one.
+//        /// </remarks>
+//        /// <returns></returns>
+//        /// <param name='bodyData'></param>
+//        /// <param name='extraParams'></param>
+//        bool AlwaysIdenticalConversion(string bodyData, string extraParams);
+
         byte[] ConvertUrl(string url, string extraParams);
-        byte[] ConvertStream(Stream data, string extraParams);
+        byte[] ConvertData(string bodyData, string extraParams);
         bool AsyncConvertUrl(UUID id, string url, string extraParams);
         bool AsyncConvertData(UUID id, string bodyData, string extraParams);
         void GetDrawStringSize(string text, string fontName, int fontSize, 
diff --git a/OpenSim/Region/Framework/Scenes/Tests/UserInventoryTests.cs b/OpenSim/Region/Framework/Scenes/Tests/UserInventoryTests.cs
index 44d2d452d5..9457ebb374 100644
--- a/OpenSim/Region/Framework/Scenes/Tests/UserInventoryTests.cs
+++ b/OpenSim/Region/Framework/Scenes/Tests/UserInventoryTests.cs
@@ -50,8 +50,40 @@ using OpenSim.Tests.Common.Mock;
 namespace OpenSim.Region.Framework.Tests
 {
     [TestFixture]
-    public class UserInventoryTests
+    public class UserInventoryTests : OpenSimTestCase
     {
+        [Test]
+        public void TestCreateInventoryFolders()
+        {
+            TestHelpers.InMethod();
+//            TestHelpers.EnableLogging();
+
+            // For this test both folders will have the same name which is legal in SL user inventories.
+            string foldersName = "f1";
+
+            Scene scene = new SceneHelpers().SetupScene();
+            UserAccount user1 = UserAccountHelpers.CreateUserWithInventory(scene, TestHelpers.ParseTail(1001));
+
+            UserInventoryHelpers.CreateInventoryFolder(scene.InventoryService, user1.PrincipalID, foldersName);
+
+            List<InventoryFolderBase> oneFolder
+                = UserInventoryHelpers.GetInventoryFolders(scene.InventoryService, user1.PrincipalID, foldersName);
+
+            Assert.That(oneFolder.Count, Is.EqualTo(1));
+            InventoryFolderBase firstRetrievedFolder = oneFolder[0];
+            Assert.That(firstRetrievedFolder.Name, Is.EqualTo(foldersName));
+
+            UserInventoryHelpers.CreateInventoryFolder(scene.InventoryService, user1.PrincipalID, foldersName);
+
+            List<InventoryFolderBase> twoFolders
+                = UserInventoryHelpers.GetInventoryFolders(scene.InventoryService, user1.PrincipalID, foldersName);
+
+            Assert.That(twoFolders.Count, Is.EqualTo(2));
+            Assert.That(twoFolders[0].Name, Is.EqualTo(foldersName));
+            Assert.That(twoFolders[1].Name, Is.EqualTo(foldersName));
+            Assert.That(twoFolders[0].ID, Is.Not.EqualTo(twoFolders[1].ID));
+        }
+
         [Test]
         public void TestGiveInventoryItem()
         {
@@ -83,7 +115,7 @@ namespace OpenSim.Region.Framework.Tests
         public void TestGiveInventoryFolder()
         {
             TestHelpers.InMethod();
-//            log4net.Config.XmlConfigurator.Configure();
+//            TestHelpers.EnableLogging();
             
             Scene scene = new SceneHelpers().SetupScene();
             UserAccount user1 = UserAccountHelpers.CreateUserWithInventory(scene, TestHelpers.ParseTail(1001));
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 5316d085a5..61e8a28f65 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -7701,7 +7701,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
-            setLinkPrimParams(ScriptBaseClass.LINK_THIS, rules);
+            setLinkPrimParams(ScriptBaseClass.LINK_THIS, rules, "llSetPrimitiveParams");
 
             ScriptSleep(200);
         }
@@ -7710,10 +7710,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         {
             m_host.AddScriptLPS(1);
 
-            setLinkPrimParams(linknumber, rules);
+            setLinkPrimParams(linknumber, rules, "llSetLinkPrimitiveParamsFast");
+
+            ScriptSleep(200);
         }
 
-        private void setLinkPrimParams(int linknumber, LSL_List rules)
+        private void setLinkPrimParams(int linknumber, LSL_List rules, string originFunc)
         {
             List<object> parts = new List<object>();
             List<SceneObjectPart> prims = GetLinkParts(linknumber);
@@ -7724,15 +7726,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 parts.Add(p);
 
             LSL_List remaining = null;
+            uint rulesParsed = 0;
 
             if (parts.Count > 0)
             {
                 foreach (object part in parts)
                 {
                     if (part is SceneObjectPart)
-                        remaining = SetPrimParams((SceneObjectPart)part, rules);
+                        remaining = SetPrimParams((SceneObjectPart)part, rules, originFunc, ref rulesParsed);
                     else
-                        remaining = SetPrimParams((ScenePresence)part, rules);
+                        remaining = SetPrimParams((ScenePresence)part, rules, originFunc, ref rulesParsed);
                 }
 
                 while ((object)remaining != null && remaining.Length > 2)
@@ -7750,9 +7753,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     foreach (object part in parts)
                     {
                         if (part is SceneObjectPart)
-                            remaining = SetPrimParams((SceneObjectPart)part, rules);
+                            remaining = SetPrimParams((SceneObjectPart)part, rules, originFunc, ref rulesParsed);
                         else
-                            remaining = SetPrimParams((ScenePresence)part, rules);
+                            remaining = SetPrimParams((ScenePresence)part, rules, originFunc, ref rulesParsed);
                     }
                 }
             }
@@ -7790,6 +7793,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
         public void llSetLinkPrimitiveParams(int linknumber, LSL_List rules)
         {
+            setLinkPrimParams(linknumber, rules, "llSetLinkPrimitiveParams");
             llSetLinkPrimitiveParamsFast(linknumber, rules);
             ScriptSleep(200);
         }
@@ -7817,12 +7821,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return new Vector3((float)x, (float)y, (float)z);
         }
 
-        protected LSL_List SetPrimParams(SceneObjectPart part, LSL_List rules)
+        protected LSL_List SetPrimParams(SceneObjectPart part, LSL_List rules, string originFunc, ref uint rulesParsed)
         {
             if (part == null || part.ParentGroup == null || part.ParentGroup.IsDeleted)
                 return null;
 
             int idx = 0;
+            int idxStart = 0;
 
             SceneObjectGroup parentgrp = part.ParentGroup;
 
@@ -7833,9 +7838,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             {
                 while (idx < rules.Length)
                 {
+                    ++rulesParsed;
                     int code = rules.GetLSLIntegerItem(idx++);
 
                     int remain = rules.Length - idx;
+                    idxStart = idx;
 
                     int face;
                     LSL_Vector v;
@@ -8243,7 +8250,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
             catch (InvalidCastException e)
             {
-                ShoutError(e.Message);
+                ShoutError(string.Format(
+                        "{0} error running rule #{1}: arg #{2} ",
+                        originFunc, rulesParsed, idx - idxStart) + e.Message);
             }
             finally
             {
@@ -11660,7 +11669,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             return tid.ToString();
         }
 
-        public void SetPrimitiveParamsEx(LSL_Key prim, LSL_List rules)
+        public void SetPrimitiveParamsEx(LSL_Key prim, LSL_List rules, string originFunc)
         {
             SceneObjectPart obj = World.GetSceneObjectPart(new UUID(prim));
             if (obj == null)
@@ -11669,14 +11678,15 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             if (obj.OwnerID != m_host.OwnerID)
                 return;
 
-            LSL_List remaining = SetPrimParams(obj, rules);
+            uint rulesParsed = 0;
+            LSL_List remaining = SetPrimParams(obj, rules, originFunc, ref rulesParsed);
 
             while ((object)remaining != null && remaining.Length > 2)
             {
                 LSL_Integer newLink = remaining.GetLSLIntegerItem(0);
                 LSL_List newrules = remaining.GetSublist(1, -1);
                 foreach(SceneObjectPart part in GetLinkParts(obj, newLink)){
-                    remaining = SetPrimParams(part, newrules);
+                    remaining = SetPrimParams(part, newrules, originFunc, ref rulesParsed);
                 }
             }
         }
@@ -12640,11 +12650,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             }
         }
 
-        protected LSL_List SetPrimParams(ScenePresence av, LSL_List rules)
+        protected LSL_List SetPrimParams(ScenePresence av, LSL_List rules, string originFunc, ref uint rulesParsed)
         {
             //This is a special version of SetPrimParams to deal with avatars which are sat on the linkset.
 
             int idx = 0;
+            int idxStart = 0;
 
             bool positionChanged = false;
             Vector3 finalPos = Vector3.Zero;
@@ -12653,9 +12664,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             {
                 while (idx < rules.Length)
                 {
+                    ++rulesParsed;
                     int code = rules.GetLSLIntegerItem(idx++);
 
                     int remain = rules.Length - idx;
+                    idxStart = idx;
 
                     switch (code)
                     {
@@ -12809,7 +12822,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     }
                 }
             }
-
+            catch (InvalidCastException e)
+            {
+                ShoutError(string.Format(
+                        "{0} error running rule #{1}: arg #{2} ",
+                        originFunc, rulesParsed, idx - idxStart) + e.Message);
+            }
             finally
             {
                 if (positionChanged)
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
index 5bc78d68c2..ceff88913c 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
@@ -3036,7 +3036,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             m_host.AddScriptLPS(1);
             InitLSL();
             
-            m_LSL_Api.SetPrimitiveParamsEx(prim, rules);
+            m_LSL_Api.SetPrimitiveParamsEx(prim, rules, "osSetPrimitiveParams");
         }
         
         /// <summary>
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
index e08328f66e..05c20f9978 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/ILSL_Api.cs
@@ -429,7 +429,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
        LSL_Integer llGetLinkNumberOfSides(LSL_Integer link);
               void llSetPhysicsMaterial(int material_bits, float material_gravity_modifier, float material_restitution, float material_friction, float material_density);
 
-              void SetPrimitiveParamsEx(LSL_Key prim, LSL_List rules);
+              void SetPrimitiveParamsEx(LSL_Key prim, LSL_List rules, string originFunc);
               void llSetKeyframedMotion(LSL_List frames, LSL_List options);
           LSL_List GetPrimitiveParamsEx(LSL_Key prim, LSL_List rules);
     }
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
index 8101da5d37..d0e041cf7d 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs
@@ -40,16 +40,75 @@ using LSL_Key = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLString;
 
 namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
 {
+    /// <summary>
+    /// To permit region owners to enable the extended scripting functionality
+    /// of OSSL, without allowing malicious scripts to access potentially
+    /// troublesome functions, each OSSL function is assigned a threat level,
+    /// and access to the functions is granted or denied based on a default
+    /// threshold set in OpenSim.ini (which can be overridden for individual
+    /// functions on a case-by-case basis)
+    /// </summary>
     public enum ThreatLevel
     {
+        // Not documented, presumably means permanently disabled ?
         NoAccess = -1,
+
+        /// <summary>
+        /// Function is no threat at all. It doesn't constitute a threat to 
+        /// either users or the system and has no known side effects.
+        /// </summary>
         None = 0,
+
+        /// <summary>
+        /// Abuse of this command can cause a nuisance to the region operator,
+        /// such as log message spew.
+        /// </summary>
         Nuisance = 1,
+
+        /// <summary>
+        /// Extreme levels of abuse of this function can cause impaired 
+        /// functioning of the region, or very gullible users can be tricked
+        /// into experiencing harmless effects.
+        /// </summary>
         VeryLow = 2,
+
+        /// <summary>
+        /// Intentional abuse can cause crashes or malfunction under certain
+        /// circumstances, which can be easily rectified; or certain users can
+        /// be tricked into certain situations in an avoidable manner.
+        /// </summary>
         Low = 3,
+
+        /// <summary>
+        /// Intentional abuse can cause denial of service and crashes with
+        /// potential of data or state loss; or trusting users can be tricked 
+        /// into embarrassing or uncomfortable situations.
+        /// </summary>
         Moderate = 4,
+
+        /// <summary>
+        /// Casual abuse can cause impaired functionality or temporary denial
+        /// of service conditions. Intentional abuse can easily cause crashes
+        /// with potential data loss, or can be used to trick experienced and
+        /// cautious users into unwanted situations, or changes global data
+        /// permanently and without undo ability.
+        /// </summary>
         High = 5,
+
+        /// <summary>
+        /// Even normal use may, depending on the number of instances, or
+        /// frequency of use, result in severe service impairment or crash
+        /// with loss of data, or can be used to cause unwanted or harmful
+        /// effects on users without giving the user a means to avoid it.
+        /// </summary>
         VeryHigh = 6,
+
+        /// <summary>
+        /// Even casual use is a danger to region stability, or function allows
+        /// console or OS command execution, or function allows taking money
+        /// without consent, or allows deletion or modification of user data,
+        /// or allows the compromise of sensitive data by design.
+        /// </summary>
         Severe = 7
     };
 
diff --git a/OpenSim/Services/InventoryService/XInventoryService.cs b/OpenSim/Services/InventoryService/XInventoryService.cs
index deacd5a4b4..309dab4501 100644
--- a/OpenSim/Services/InventoryService/XInventoryService.cs
+++ b/OpenSim/Services/InventoryService/XInventoryService.cs
@@ -94,6 +94,7 @@ namespace OpenSim.Services.InventoryService
 
             m_Database = LoadPlugin<IXInventoryData>(dllName,
                     new Object[] {connString, String.Empty});
+
             if (m_Database == null)
                 throw new Exception("Could not find a storage interface in the given module");
         }
@@ -326,7 +327,7 @@ namespace OpenSim.Services.InventoryService
             if (check != null)
                 return false;
 
-            if (folder.Type != (short)AssetType.Folder || folder.Type != (short)AssetType.Unknown)
+            if (folder.Type != (short)AssetType.Folder && folder.Type != (short)AssetType.Unknown)
             {
                 InventoryFolderBase rootFolder = GetRootFolder(folder.Owner);
 
diff --git a/OpenSim/Tests/Common/Helpers/SceneHelpers.cs b/OpenSim/Tests/Common/Helpers/SceneHelpers.cs
index 7598cc360e..fc49169c97 100644
--- a/OpenSim/Tests/Common/Helpers/SceneHelpers.cs
+++ b/OpenSim/Tests/Common/Helpers/SceneHelpers.cs
@@ -245,7 +245,7 @@ namespace OpenSim.Tests.Common
             config.AddConfig("Modules");
             config.AddConfig("InventoryService");
             config.Configs["Modules"].Set("InventoryServices", "LocalInventoryServicesConnector");
-            config.Configs["InventoryService"].Set("LocalServiceModule", "OpenSim.Services.InventoryService.dll:InventoryService");
+            config.Configs["InventoryService"].Set("LocalServiceModule", "OpenSim.Services.InventoryService.dll:XInventoryService");
             config.Configs["InventoryService"].Set("StorageProvider", "OpenSim.Tests.Common.dll");
 
             LocalInventoryServicesConnector inventoryService = new LocalInventoryServicesConnector();
diff --git a/OpenSim/Tests/Common/Helpers/UserInventoryHelpers.cs b/OpenSim/Tests/Common/Helpers/UserInventoryHelpers.cs
index b3a7c9eec3..87d9410f22 100644
--- a/OpenSim/Tests/Common/Helpers/UserInventoryHelpers.cs
+++ b/OpenSim/Tests/Common/Helpers/UserInventoryHelpers.cs
@@ -199,7 +199,9 @@ namespace OpenSim.Tests.Common
             string[] components = path.Split(new string[] { PATH_DELIMITER }, 2, StringSplitOptions.None);
 
             InventoryFolderBase newFolder 
-                = new InventoryFolderBase(UUID.Random(), components[0], parentFolder.Owner, parentFolder.ID);
+                = new InventoryFolderBase(
+                    UUID.Random(), components[0], parentFolder.Owner, (short)AssetType.Unknown, parentFolder.ID, 0);
+            
             inventoryService.AddFolder(newFolder);
 
             if (components.Length > 1)
diff --git a/OpenSim/Tests/Common/Mock/TestXInventoryDataPlugin.cs b/OpenSim/Tests/Common/Mock/TestXInventoryDataPlugin.cs
new file mode 100644
index 0000000000..bca5979e50
--- /dev/null
+++ b/OpenSim/Tests/Common/Mock/TestXInventoryDataPlugin.cs
@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using log4net;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Data;
+
+namespace OpenSim.Tests.Common.Mock
+{
+    public class TestXInventoryDataPlugin : IXInventoryData
+    {
+        private Dictionary<UUID, XInventoryFolder> m_allFolders = new Dictionary<UUID, XInventoryFolder>();
+        private Dictionary<UUID, XInventoryItem> m_allItems = new Dictionary<UUID, XInventoryItem>();
+
+        public TestXInventoryDataPlugin(string conn, string realm) {}
+
+        public XInventoryItem[] GetItems(string[] fields, string[] vals)
+        {
+            List<XInventoryItem> origItems = Get<XInventoryItem>(fields, vals, m_allItems.Values.ToList());
+
+            return origItems.Select(i => i.Clone()).ToArray();
+        }
+
+        public XInventoryFolder[] GetFolders(string[] fields, string[] vals)
+        {
+            List<XInventoryFolder> origFolders
+                = Get<XInventoryFolder>(fields, vals, m_allFolders.Values.ToList());
+
+            return origFolders.Select(f => f.Clone()).ToArray();
+        }
+
+        private List<T> Get<T>(string[] fields, string[] vals, List<T> inputEntities)
+        {
+            List<T> entities = inputEntities;
+
+            for (int i = 0; i < fields.Length; i++)
+            {
+                entities
+                    = entities.Where(
+                        e =>
+                        {
+                            FieldInfo fi = typeof(T).GetField(fields[i]);
+                            if (fi == null)
+                                throw new NotImplementedException(string.Format("No field {0} for val {1}", fields[i], vals[i]));
+
+                            return fi.GetValue(e).ToString() == vals[i];
+                        }
+                    ).ToList();
+            }
+
+            return entities;
+        }
+
+        public bool StoreFolder(XInventoryFolder folder)
+        {
+            m_allFolders[folder.folderID] = folder.Clone();
+
+//            Console.WriteLine("Added folder {0} {1}", folder.folderName, folder.folderID);
+
+            return true;
+        }
+
+        public bool StoreItem(XInventoryItem item)
+        {
+            m_allItems[item.inventoryID] = item.Clone();
+
+//            Console.WriteLine("Added item {0} {1}, creator {2}, owner {3}", item.inventoryName, item.inventoryID, item.creatorID, item.avatarID);
+
+            return true;
+        }
+
+        public bool DeleteFolders(string field, string val)
+        {
+            return DeleteFolders(new string[] { field }, new string[] { val });
+        }
+
+        public bool DeleteFolders(string[] fields, string[] vals)
+        {
+            XInventoryFolder[] foldersToDelete = GetFolders(fields, vals);
+            Array.ForEach(foldersToDelete, f => m_allFolders.Remove(f.folderID));
+
+            return true;
+        }
+
+        public bool DeleteItems(string field, string val)
+        {
+            return DeleteItems(new string[] { field }, new string[] { val });
+        }
+
+        public bool DeleteItems(string[] fields, string[] vals)
+        {
+            XInventoryItem[] itemsToDelete = GetItems(fields, vals);
+            Array.ForEach(itemsToDelete, i => m_allItems.Remove(i.inventoryID));
+
+            return true;
+        }
+
+        public bool MoveItem(string id, string newParent) { throw new NotImplementedException(); }
+        public XInventoryItem[] GetActiveGestures(UUID principalID) { throw new NotImplementedException(); }
+        public int GetAssetPermissions(UUID principalID, UUID assetID) { throw new NotImplementedException(); }
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Tests/Common/TestHelpers.cs b/OpenSim/Tests/Common/TestHelpers.cs
index 30121fef6a..57da802e6b 100644
--- a/OpenSim/Tests/Common/TestHelpers.cs
+++ b/OpenSim/Tests/Common/TestHelpers.cs
@@ -95,6 +95,7 @@ namespace OpenSim.Tests.Common
         public static void EnableLogging()
         {
             log4net.Config.XmlConfigurator.Configure(EnableLoggingConfigStream);
+            EnableLoggingConfigStream.Position = 0;
         }
 
         /// <summary>