diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
index 0c446dc38b..fa712a7ac1 100644
--- a/CONTRIBUTORS.txt
+++ b/CONTRIBUTORS.txt
@@ -43,6 +43,7 @@ Patches
 * alex_carnell
 * webmage (International Business Machines Corp.)
 * jimbo2120 (International Business Machines Corp.)
+* brianw/Sir_Ahzz
 
 
 LSL Devs
diff --git a/OpenSim/Region/Environment/LandManagement/LandManager.cs b/OpenSim/Region/Environment/LandManagement/LandManager.cs
index 017fce89da..4f6015afda 100644
--- a/OpenSim/Region/Environment/LandManagement/LandManager.cs
+++ b/OpenSim/Region/Environment/LandManagement/LandManager.cs
@@ -576,7 +576,7 @@ namespace OpenSim.Region.Environment.LandManagement
                     Land currentParcel = null;
                     try
                     {
-                        getLandObject(start_x + x, start_y + y);
+                        currentParcel = getLandObject(start_x + x, start_y + y);
                     }
                     catch (Exception)
                     {
diff --git a/OpenSim/Region/Physics/Manager/PhysicsActor.cs b/OpenSim/Region/Physics/Manager/PhysicsActor.cs
index 088d85af59..f44c1608cd 100644
--- a/OpenSim/Region/Physics/Manager/PhysicsActor.cs
+++ b/OpenSim/Region/Physics/Manager/PhysicsActor.cs
@@ -136,9 +136,13 @@ namespace OpenSim.Region.Physics.Manager
             // a race condition if the last subscriber unsubscribes
             // immediately after the null check and before the event is raised.
             RequestTerseUpdate handler = OnRequestTerseUpdate;
+            
             if (handler != null)
             {
-                handler();
+                lock (handler)
+                {
+                    handler();
+                }
             }
         }
 
@@ -150,17 +154,25 @@ namespace OpenSim.Region.Physics.Manager
             OutOfBounds handler = OnOutOfBounds;
             if (handler != null)
             {
-                handler(pos);
+                lock (handler)
+                {
+                    handler(pos);
+                }
             }
         }
 
         public virtual void SendCollisionUpdate(EventArgs e)
         {
             CollisionUpdate handler = OnCollisionUpdate;
+      
             if (handler != null)
-            {
-                handler(e);
+            { 
+                lock (handler)
+                {
+                    handler(e);
+                }
             }
+            
         }