diff --git a/OpenSim/Framework/MinHeap.cs b/OpenSim/Framework/MinHeap.cs
index 33d0364b6e..99ac25d09d 100644
--- a/OpenSim/Framework/MinHeap.cs
+++ b/OpenSim/Framework/MinHeap.cs
@@ -63,12 +63,15 @@ namespace OpenSim.Framework
 
             internal void Clear()
             {
-                this.value = default(T);
                 if (this.handle != null)
-                {
                     this.handle.Clear();
-                    this.handle = null;
-                }
+                ClearRef();
+            }
+
+            internal void ClearRef()
+            {
+                this.value = default(T);
+                this.handle = null;
             }
         }
 
@@ -285,6 +288,7 @@ namespace OpenSim.Framework
             if (--this.size > 0 && index != this.size)
             {
                 Set(this.items[this.size], index);
+                this.items[this.size].ClearRef();
                 if (!BubbleUp(index))
                     BubbleDown(index);
             }
diff --git a/OpenSim/Framework/Statistics/BaseStatsCollector.cs b/OpenSim/Framework/Statistics/BaseStatsCollector.cs
index c9e57ce7b3..3f918f3bd9 100644
--- a/OpenSim/Framework/Statistics/BaseStatsCollector.cs
+++ b/OpenSim/Framework/Statistics/BaseStatsCollector.cs
@@ -48,10 +48,26 @@ namespace OpenSim.Framework.Statistics
                 string.Format(
                     "Allocated to OpenSim objects: {0} MB\n",
                     Math.Round(GC.GetTotalMemory(false) / 1024.0 / 1024.0)));
-            sb.Append(
-                string.Format(
-                    "Process memory              : {0} MB\n",
-                    Math.Round(Process.GetCurrentProcess().WorkingSet64 / 1024.0 / 1024.0)));
+
+            Process myprocess = Process.GetCurrentProcess();
+            if (!myprocess.HasExited)
+            {
+                myprocess.Refresh();
+                sb.Append(
+                    string.Format(
+                        "Process memory:      Physical {0} MB \t Paged {1} MB \t Virtual {2} MB\n",
+                        Math.Round(Process.GetCurrentProcess().WorkingSet64 / 1024.0 / 1024.0),
+                        Math.Round(Process.GetCurrentProcess().PagedMemorySize64 / 1024.0 / 1024.0),
+                        Math.Round(Process.GetCurrentProcess().VirtualMemorySize64 / 1024.0 / 1024.0)));
+                sb.Append(
+                    string.Format(
+                        "Peak process memory: Physical {0} MB \t Paged {1} MB \t Virtual {2} MB\n",
+                        Math.Round(Process.GetCurrentProcess().PeakWorkingSet64 / 1024.0 / 1024.0),
+                        Math.Round(Process.GetCurrentProcess().PeakPagedMemorySize64 / 1024.0 / 1024.0),
+                        Math.Round(Process.GetCurrentProcess().PeakVirtualMemorySize64 / 1024.0 / 1024.0)));
+            }
+            else
+                sb.Append("Process reported as Exited \n");
 
             return sb.ToString();
         }
diff --git a/OpenSim/Region/Framework/Scenes/SceneGraph.cs b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
index a600b86cde..058784694f 100644
--- a/OpenSim/Region/Framework/Scenes/SceneGraph.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneGraph.cs
@@ -1820,6 +1820,8 @@ namespace OpenSim.Region.Framework.Scenes
                     {
                         parentGroup.LinkToGroup(child);
 
+                        child.DetachFromBackup();
+
                         // this is here so physics gets updated!
                         // Don't remove!  Bad juju!  Stay away! or fix physics!
                         child.AbsolutePosition = child.AbsolutePosition;
diff --git a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
index 1e0f01f73a..2a01fc4070 100644
--- a/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
+++ b/OpenSim/Region/ScriptEngine/XEngine/XEngine.cs
@@ -596,7 +596,11 @@ namespace OpenSim.Region.ScriptEngine.XEngine
             if (!m_Enabled)
                 return;
             lockScriptsForRead(true);
-            foreach (IScriptInstance instance in m_Scripts.Values)
+
+            List<IScriptInstance> instancesToDel = new List<IScriptInstance>(m_Scripts.Values);
+
+//            foreach (IScriptInstance instance in m_Scripts.Values)
+            foreach (IScriptInstance instance in instancesToDel)
             {
                 // Force a final state save
                 //
@@ -619,7 +623,7 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                 // Must be done explicitly because they have infinite
                 // lifetime
                 //
-                if (!m_SimulatorShuttingDown)
+//                if (!m_SimulatorShuttingDown)
                 {
                     m_DomainScripts[instance.AppDomain].Remove(instance.ItemID);
                     if (m_DomainScripts[instance.AppDomain].Count == 0)
@@ -629,10 +633,10 @@ namespace OpenSim.Region.ScriptEngine.XEngine
                     }
                 }
 
-                m_Scripts.Clear();
-                m_PrimObjects.Clear();
-                m_Assemblies.Clear();
-                m_DomainScripts.Clear();
+//                m_Scripts.Clear();
+//                m_PrimObjects.Clear();
+//                m_Assemblies.Clear();
+//                m_DomainScripts.Clear();
             }
             lockScriptsForRead(false);
             lockScriptsForWrite(true);