diff --git a/OpenSim/Region/Environment/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Environment/Scenes/SceneObjectGroup.cs
index e295f87ed3..4c699308f7 100644
--- a/OpenSim/Region/Environment/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Environment/Scenes/SceneObjectGroup.cs
@@ -947,6 +947,9 @@ namespace OpenSim.Region.Environment.Scenes
         /// <param name="objectGroup">The group of prims which should be linked to this group</param>
         public void LinkToGroup(SceneObjectGroup objectGroup)
         {
+            if (objectGroup.RootPart.UpdateFlag > 0)
+                return;
+
             SceneObjectPart linkPart = objectGroup.m_rootPart;
             
             Vector3 oldGroupPosition =
@@ -1014,10 +1017,13 @@ namespace OpenSim.Region.Environment.Scenes
         /// <param name="partID"></param>
         public void DelinkFromGroup(uint partID)
         {
+            if (RootPart.UpdateFlag > 0)
+                return;
+            
             SceneObjectPart linkPart = GetChildPart(partID);
 
             if (null != linkPart)
-            {
+            {                
                 LLQuaternion worldRot = linkPart.GetWorldRotation();  
     
                 // Remove the part from this object
diff --git a/OpenSim/Region/Environment/Scenes/SceneObjectPart.cs b/OpenSim/Region/Environment/Scenes/SceneObjectPart.cs
index 060003e8f6..4fc688aa8f 100644
--- a/OpenSim/Region/Environment/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Environment/Scenes/SceneObjectPart.cs
@@ -1114,7 +1114,17 @@ namespace OpenSim.Region.Environment.Scenes
                 m_parentGroup.QueueForUpdateCheck();
             }
             
-            TimeStampFull = (uint) Util.UnixTimeSinceEpoch();
+            int timeNow = Util.UnixTimeSinceEpoch();
+                        
+            if (timeNow == TimeStampFull)
+            {
+                TimeStampFull += 1;
+            }
+            else
+            {
+                TimeStampFull = (uint)timeNow;
+            }
+            
             m_updateFlag = 2;
         }
 
diff --git a/OpenSim/Region/Environment/Scenes/ScenePresence.cs b/OpenSim/Region/Environment/Scenes/ScenePresence.cs
index fb0e836a40..44d2316f2d 100644
--- a/OpenSim/Region/Environment/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Environment/Scenes/ScenePresence.cs
@@ -479,8 +479,12 @@ namespace OpenSim.Region.Environment.Scenes
                         //
                         // If we don't do this, various events (such as linking and delinking in the same
                         // second), will stop working properly!
-                        if (update.LastFullUpdateTime <= part.TimeStampFull)
+                        if (update.LastFullUpdateTime < part.TimeStampFull)
                         {
+//                            m_log.DebugFormat(
+//                                "[SCENE PRESENCE]: Fully   updating prim {0}, {1} - part timestamp {2}", 
+//                                part.Name, part.UUID, part.TimeStampFull);
+                            
                             //need to do a full update
                             part.SendFullUpdate(ControllingClient, GenerateClientFlags(part.UUID));
 
@@ -494,6 +498,10 @@ namespace OpenSim.Region.Environment.Scenes
                         }
                         else if (update.LastTerseUpdateTime <= part.TimeStampTerse)
                         {
+//                            m_log.DebugFormat(
+//                                "[SCENE PRESENCE]: Tersely updating prim {0}, {1} - part timestamp {2}", 
+//                                part.Name, part.UUID, part.TimeStampTerse);
+                            
                             part.SendTerseUpdate(ControllingClient);
 
                             update.LastTerseUpdateTime = part.TimeStampTerse;