diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index ba97c47b90..28758a9e13 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -701,6 +701,11 @@ namespace OpenSim.Region.Framework.Scenes
                         part.GroupPosition = val;
                 }
 
+                foreach (ScenePresence av in m_linkedAvatars)
+                {
+                    av.sitSOGmoved();
+                }
+
                 // now that position is changed tell it to scripts
                 if (triggerScriptEvent)
                 {
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index ae14af21c8..494c9e0008 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -163,6 +163,7 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                     m_currentParcelUUID = value;
                     m_currentParcelHide = false;
+
                     ILandObject land = m_scene.LandChannel.GetLandObject(AbsolutePosition.X, AbsolutePosition.Y);
                     if (land != null && !land.LandData.SeeAVs)
                         m_currentParcelHide = true;
@@ -172,6 +173,23 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
+        public void sitSOGmoved()
+        {
+            if (IsDeleted || !IsSatOnObject)
+                //what me?  nahh
+                return;
+            if (IsInTransit)
+                return;
+
+            ILandObject land = m_scene.LandChannel.GetLandObject(AbsolutePosition.X, AbsolutePosition.Y);
+            if (land == null)
+                return; //??
+            UUID parcelID = land.LandData.GlobalID;
+            if (m_currentParcelUUID != parcelID)
+                currentParcelUUID = parcelID;
+        }
+
+
         public bool ParcelAllowThisAvatarSounds
         {
             get
@@ -2707,7 +2725,7 @@ namespace OpenSim.Region.Framework.Scenes
 
             if (satOnObject)
             {
-                SendAvatarDataToAllAgents();
+//                SendAvatarDataToAllAgents();
                 m_requestedSitTargetID = 0;
 
                 part.RemoveSittingAvatar(UUID);
@@ -2719,6 +2737,22 @@ namespace OpenSim.Region.Framework.Scenes
                 AddToPhysicalScene(false);
 
             Animator.TrySetMovementAnimation("STAND");
+
+            if (satOnObject)
+            {
+                ILandObject land = m_scene.LandChannel.GetLandObject(AbsolutePosition.X,AbsolutePosition.Y);
+                if (land != null)
+                {
+                    UUID parcelID = land.LandData.GlobalID;
+                    if (m_currentParcelUUID != parcelID)
+                        currentParcelUUID = parcelID;
+                    else
+                        SendAvatarDataToAllAgents();
+                }
+                else
+                    SendAvatarDataToAllAgents();
+            }
+
             TriggerScenePresenceUpdated();
         }