diff --git a/OpenSim/Region/Application/OpenSimBase.cs b/OpenSim/Region/Application/OpenSimBase.cs
index 50baa56e23..9fdba92044 100644
--- a/OpenSim/Region/Application/OpenSimBase.cs
+++ b/OpenSim/Region/Application/OpenSimBase.cs
@@ -46,7 +46,7 @@ using OpenSim.Region.Framework;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
 using OpenSim.Region.Physics.Manager;
-using OpenSim.Server.Base;
+using OpenSim.Server.Base;
 using OpenSim.Services.Base;
 using OpenSim.Services.Interfaces;
 using OpenSim.Services.UserAccountService;
diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index 34b3c1d2fb..b0a0046598 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -1180,10 +1180,10 @@ namespace OpenSim.Region.Framework.Scenes
         public void CompleteMovement(IClientAPI client, bool openChildAgents)
         {
 //            DateTime startTime = DateTime.Now;
-            
-//            m_log.DebugFormat(
-//                "[SCENE PRESENCE]: Completing movement of {0} into region {1}", 
-//                client.Name, Scene.RegionInfo.RegionName);
+
+            m_log.DebugFormat(
+                "[SCENE PRESENCE]: Completing movement of {0} into region {1} in position {2}",
+                client.Name, Scene.RegionInfo.RegionName, AbsolutePosition);
 
             Vector3 look = Velocity;
             if ((look.X == 0) && (look.Y == 0) && (look.Z == 0))
@@ -2405,9 +2405,7 @@ namespace OpenSim.Region.Framework.Scenes
                     m_lastVelocity = Velocity;
                 }
 
-                // followed suggestion from mic bowman. reversed the two lines below.
-                if (ParentID == 0 && PhysicsActor != null || ParentID != 0) // Check that we have a physics actor or we're sitting on something
-                    CheckForBorderCrossing();
+                CheckForBorderCrossing();
 
                 CheckForSignificantMovement(); // sends update to the modules.
             }
@@ -2760,146 +2758,143 @@ namespace OpenSim.Region.Framework.Scenes
         /// </remarks>
         protected void CheckForBorderCrossing()
         {
-            if (IsChildAgent)
+            // Check that we we are not a child
+            if (IsChildAgent) 
                 return;
 
             if (ParentID != 0)
                 return;
 
-            Vector3 pos2 = AbsolutePosition;
-            Vector3 vel = Velocity;
-            int neighbor = 0;
-            int[] fix = new int[2];
-
-            float timeStep = 0.1f;
-            pos2.X = pos2.X + (vel.X*timeStep);
-            pos2.Y = pos2.Y + (vel.Y*timeStep);
-            pos2.Z = pos2.Z + (vel.Z*timeStep);
-
             if (!IsInTransit)
             {
-                // Checks if where it's headed exists a region
+                Vector3 pos2 = AbsolutePosition;
+                Vector3 vel = Velocity;
+                int neighbor = 0;
+                int[] fix = new int[2];
 
-                bool needsTransit = false;
-                if (m_scene.TestBorderCross(pos2, Cardinals.W))
-                {
-                    if (m_scene.TestBorderCross(pos2, Cardinals.S))
-                    {
-                        needsTransit = true;
-                        neighbor = m_scene.HaveNeighbor(Cardinals.SW, ref fix);
-                    }
-                    else if (m_scene.TestBorderCross(pos2, Cardinals.N))
-                    {
-                        needsTransit = true;
-                        neighbor = m_scene.HaveNeighbor(Cardinals.NW, ref fix);
-                    }
-                    else
-                    {
-                        needsTransit = true;
-                        neighbor = m_scene.HaveNeighbor(Cardinals.W, ref fix);
-                    }
-                }
-                else if (m_scene.TestBorderCross(pos2, Cardinals.E))
-                {
-                    if (m_scene.TestBorderCross(pos2, Cardinals.S))
-                    {
-                        needsTransit = true;
-                        neighbor = m_scene.HaveNeighbor(Cardinals.SE, ref fix);
-                    }
-                    else if (m_scene.TestBorderCross(pos2, Cardinals.N))
-                    {
-                        needsTransit = true;
-                        neighbor = m_scene.HaveNeighbor(Cardinals.NE, ref fix);
-                    }
-                    else
-                    {
-                        needsTransit = true;
-                        neighbor = m_scene.HaveNeighbor(Cardinals.E, ref fix);
-                    }
-                }
-                else if (m_scene.TestBorderCross(pos2, Cardinals.S))
-                {
-                    needsTransit = true;
-                    neighbor = m_scene.HaveNeighbor(Cardinals.S, ref fix);
-                }
-                else if (m_scene.TestBorderCross(pos2, Cardinals.N))
-                {
-                    needsTransit = true;
-                    neighbor = m_scene.HaveNeighbor(Cardinals.N, ref fix);
-                }
-
-                // Makes sure avatar does not end up outside region
-                if (neighbor <= 0)
-                {
-                    if (needsTransit)
-                    {
-                        if (m_requestedSitTargetUUID == UUID.Zero)
-                        {
-                            bool isFlying = Flying;
-                            RemoveFromPhysicalScene();
-
-                            Vector3 pos = AbsolutePosition;
-                            if (AbsolutePosition.X < 0)
-                                pos.X += Velocity.X * 2;
-                            else if (AbsolutePosition.X > Constants.RegionSize)
-                                pos.X -= Velocity.X * 2;
-                            if (AbsolutePosition.Y < 0)
-                                pos.Y += Velocity.Y * 2;
-                            else if (AbsolutePosition.Y > Constants.RegionSize)
-                                pos.Y -= Velocity.Y * 2;
-                            Velocity = Vector3.Zero;
-                            AbsolutePosition = pos;
-
-//                            m_log.DebugFormat("[SCENE PRESENCE]: Prevented flyoff for {0} at {1}", Name, AbsolutePosition);
-
-                            AddToPhysicalScene(isFlying);
-                        }
-                    }
-                }
-                else if (neighbor > 0)
-                {
-                    if (!CrossToNewRegion())
-                    {
-                        if (m_requestedSitTargetUUID == UUID.Zero)
-                        {
-                            bool isFlying = Flying;
-                            RemoveFromPhysicalScene();
-
-                            Vector3 pos = AbsolutePosition;
-                            if (AbsolutePosition.X < 0)
-                                pos.X += Velocity.X * 2;
-                            else if (AbsolutePosition.X > Constants.RegionSize)
-                                pos.X -= Velocity.X * 2;
-                            if (AbsolutePosition.Y < 0)
-                                pos.Y += Velocity.Y * 2;
-                            else if (AbsolutePosition.Y > Constants.RegionSize)
-                                pos.Y -= Velocity.Y * 2;
-                            Velocity = Vector3.Zero;
-                            AbsolutePosition = pos;
-
-                            AddToPhysicalScene(isFlying);
-                        }
-                    }
-                }
-            }
-            else
-            {
-                // We must remove the agent from the physical scene if it has been placed in transit.  If we don't,
-                // then this method continues to be called from ScenePresence.Update() until the handover of the client between
-                // regions is completed.  Since this handover can take more than 1000ms (due to the 1000ms
-                // event queue polling response from the server), this results in the avatar pausing on the border
-                // for the handover period.
-                RemoveFromPhysicalScene();
-                
-                // This constant has been inferred from experimentation
-                // I'm not sure what this value should be, so I tried a few values.
-                timeStep = 0.04f;
-                pos2 = AbsolutePosition;
+                float timeStep = 0.1f;
                 pos2.X = pos2.X + (vel.X * timeStep);
                 pos2.Y = pos2.Y + (vel.Y * timeStep);
                 pos2.Z = pos2.Z + (vel.Z * timeStep);
-                m_pos = pos2;
-            }
+
+                if (!IsInTransit)
+                {
+                    // Checks if where it's headed exists a region
+                    bool needsTransit = false;
+                    if (m_scene.TestBorderCross(pos2, Cardinals.W))
+                    {
+                        if (m_scene.TestBorderCross(pos2, Cardinals.S))
+                        {
+                            needsTransit = true;
+                            neighbor = m_scene.HaveNeighbor(Cardinals.SW, ref fix);
+                        }
+                        else if (m_scene.TestBorderCross(pos2, Cardinals.N))
+                        {
+                            needsTransit = true;
+                            neighbor = m_scene.HaveNeighbor(Cardinals.NW, ref fix);
+                        }
+                        else
+                        {
+                            needsTransit = true;
+                            neighbor = m_scene.HaveNeighbor(Cardinals.W, ref fix);
+                        }
+                    }
+                    else if (m_scene.TestBorderCross(pos2, Cardinals.E))
+                    {
+                        if (m_scene.TestBorderCross(pos2, Cardinals.S))
+                        {
+                            needsTransit = true;
+                            neighbor = m_scene.HaveNeighbor(Cardinals.SE, ref fix);
+                        }
+                        else if (m_scene.TestBorderCross(pos2, Cardinals.N))
+                        {
+                            needsTransit = true;
+                            neighbor = m_scene.HaveNeighbor(Cardinals.NE, ref fix);
+                        }
+                        else
+                        {
+                            needsTransit = true;
+                            neighbor = m_scene.HaveNeighbor(Cardinals.E, ref fix);
+                        }
+                    }
+                    else if (m_scene.TestBorderCross(pos2, Cardinals.S))
+                    {
+                        needsTransit = true;
+                        neighbor = m_scene.HaveNeighbor(Cardinals.S, ref fix);
+                    }
+                    else if (m_scene.TestBorderCross(pos2, Cardinals.N))
+                    {
+                        needsTransit = true;
+                        neighbor = m_scene.HaveNeighbor(Cardinals.N, ref fix);
+                    }
+
+                    // Makes sure avatar does not end up outside region
+                    if (neighbor <= 0)
+                    {
+                        if (needsTransit)
+                        {
+                            if (m_requestedSitTargetUUID == UUID.Zero)
+                            {
+                                bool isFlying = Flying;
+                                RemoveFromPhysicalScene();
+
+                                Vector3 pos = AbsolutePosition;
+                                if (AbsolutePosition.X < 0)
+                                    pos.X += Velocity.X * 2;
+                                else if (AbsolutePosition.X > Constants.RegionSize)
+                                    pos.X -= Velocity.X * 2;
+                                if (AbsolutePosition.Y < 0)
+                                    pos.Y += Velocity.Y * 2;
+                                else if (AbsolutePosition.Y > Constants.RegionSize)
+                                    pos.Y -= Velocity.Y * 2;
+                                Velocity = Vector3.Zero;
+                                AbsolutePosition = pos;
+
+                                m_log.DebugFormat("[SCENE PRESENCE]: Prevented flyoff for {0} at {1}", Name, AbsolutePosition);
+
+                                AddToPhysicalScene(isFlying);
+                            }
+                        }
+                    }
+                    else if (neighbor > 0)
+                    {
+                        if (!CrossToNewRegion())
+                        {
+                            if (m_requestedSitTargetUUID == UUID.Zero)
+                            {
+                                bool isFlying = Flying;
+                                RemoveFromPhysicalScene();
+
+                                Vector3 pos = AbsolutePosition;
+                                if (AbsolutePosition.X < 0)
+                                    pos.X += Velocity.X * 2;
+                                else if (AbsolutePosition.X > Constants.RegionSize)
+                                    pos.X -= Velocity.X * 2;
+                                if (AbsolutePosition.Y < 0)
+                                    pos.Y += Velocity.Y * 2;
+                                else if (AbsolutePosition.Y > Constants.RegionSize)
+                                    pos.Y -= Velocity.Y * 2;
+                                Velocity = Vector3.Zero;
+                                AbsolutePosition = pos;
+
+                                AddToPhysicalScene(isFlying);
+                            }
+                        }
+                    }
+                }
+                else
+                {
+                    // This constant has been inferred from experimentation
+                    // I'm not sure what this value should be, so I tried a few values.
+                    timeStep = 0.04f;
+                    pos2 = AbsolutePosition;
+                    pos2.X = pos2.X + (vel.X * timeStep);
+                    pos2.Y = pos2.Y + (vel.Y * timeStep);
+                    // Don't touch the Z
+                    m_pos = pos2;
+                    m_log.DebugFormat("[SCENE PRESENCE]: In transit m_pos={0}", m_pos);
+                }
+            }   
         }
 
         /// <summary>
diff --git a/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsActor.cs b/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsActor.cs
index 1e1d5e3856..b1a3ff9df5 100644
--- a/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsActor.cs
+++ b/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsActor.cs
@@ -233,6 +233,7 @@ namespace OpenSim.Region.Physics.BasicPhysicsPlugin
         public override Vector3 Acceleration
         {
             get { return _acceleration; }
+            set { _acceleration = value; }
         }
 
         public override bool Kinematic
@@ -253,11 +254,6 @@ namespace OpenSim.Region.Physics.BasicPhysicsPlugin
         {
         }
 
-        public void SetAcceleration(Vector3 accel)
-        {
-            _acceleration = accel;
-        }
-
         public override void AddForce(Vector3 force, bool pushforce)
         {
         }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
index 9a6857bea4..0cab5d11cf 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
@@ -231,7 +231,8 @@ public class BSCharacter : PhysicsActor
         } 
     }
     public override Vector3 Acceleration { 
-        get { return _acceleration; } 
+        get { return _acceleration; }
+        set { _acceleration = value; }
     }
     public override Quaternion Orientation { 
         get { return _orientation; } 
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
index 8782e6277b..898436b133 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
@@ -417,7 +417,8 @@ public sealed class BSPrim : PhysicsActor
         } 
     }
     public override OMV.Vector3 Acceleration { 
-        get { return _acceleration; } 
+        get { return _acceleration; }
+        set { _acceleration = value; }
     }
     public override OMV.Quaternion Orientation { 
         get { return _orientation; } 
diff --git a/OpenSim/Region/Physics/Manager/PhysicsActor.cs b/OpenSim/Region/Physics/Manager/PhysicsActor.cs
index c2acf971f9..0587054c23 100644
--- a/OpenSim/Region/Physics/Manager/PhysicsActor.cs
+++ b/OpenSim/Region/Physics/Manager/PhysicsActor.cs
@@ -261,7 +261,7 @@ namespace OpenSim.Region.Physics.Manager
 
         public abstract Vector3 Torque { get; set; }
         public abstract float CollisionScore { get; set;}
-        public abstract Vector3 Acceleration { get; }
+        public abstract Vector3 Acceleration { get; set; }
         public abstract Quaternion Orientation { get; set; }
         public abstract int PhysicsActorType { get; set; }
         public abstract bool IsPhysical { get; set; }
@@ -458,6 +458,7 @@ namespace OpenSim.Region.Physics.Manager
         public override Vector3 Acceleration
         {
             get { return Vector3.Zero; }
+            set { }
         }
 
         public override bool IsPhysical
diff --git a/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs b/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs
index f2bb4bf79f..68999fc283 100644
--- a/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs
+++ b/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs
@@ -690,12 +690,7 @@ namespace OpenSim.Region.Physics.OdePlugin
         public override Vector3 Acceleration
         {
             get { return _acceleration; }
-        }
-
-        public void SetAcceleration(Vector3 accel)
-        {
-            m_pidControllerActive = true;
-            _acceleration = accel;
+            set { _acceleration = value; }
         }
 
         /// <summary>
diff --git a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
index af05a15260..62e376316f 100644
--- a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
+++ b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
@@ -2497,6 +2497,7 @@ Console.WriteLine(" JointCreateFixed");
         public override Vector3 Acceleration
         {
             get { return _acceleration; }
+            set { _acceleration = value; }
         }
 
         public override void AddForce(Vector3 force, bool pushforce)
diff --git a/OpenSim/Region/Physics/POSPlugin/POSCharacter.cs b/OpenSim/Region/Physics/POSPlugin/POSCharacter.cs
index a70179b729..ae534eaeef 100644
--- a/OpenSim/Region/Physics/POSPlugin/POSCharacter.cs
+++ b/OpenSim/Region/Physics/POSPlugin/POSCharacter.cs
@@ -231,6 +231,7 @@ namespace OpenSim.Region.Physics.POSPlugin
         public override Vector3 Acceleration
         {
             get { return _acceleration; }
+            set { _acceleration = value; }
         }
 
         public override bool Kinematic
@@ -251,11 +252,6 @@ namespace OpenSim.Region.Physics.POSPlugin
         {
         }
 
-        public void SetAcceleration(Vector3 accel)
-        {
-            _acceleration = accel;
-        }
-
         public override void AddForce(Vector3 force, bool pushforce)
         {
         }
diff --git a/OpenSim/Region/Physics/POSPlugin/POSPrim.cs b/OpenSim/Region/Physics/POSPlugin/POSPrim.cs
index 9ba5ebb44e..2ea8bfca2d 100644
--- a/OpenSim/Region/Physics/POSPlugin/POSPrim.cs
+++ b/OpenSim/Region/Physics/POSPlugin/POSPrim.cs
@@ -193,6 +193,7 @@ namespace OpenSim.Region.Physics.POSPlugin
         public override Vector3 Acceleration
         {
             get { return _acceleration; }
+            set { _acceleration = value; }
         }
 
         public override bool Kinematic
@@ -201,11 +202,6 @@ namespace OpenSim.Region.Physics.POSPlugin
             set { }
         }
 
-        public void SetAcceleration(Vector3 accel)
-        {
-            _acceleration = accel;
-        }
-
         public override void AddForce(Vector3 force, bool pushforce)
         {
         }
diff --git a/OpenSim/Region/Physics/PhysXPlugin/PhysXCharacter.cs b/OpenSim/Region/Physics/PhysXPlugin/PhysXCharacter.cs
index 92261cd19c..9216a9eff8 100644
--- a/OpenSim/Region/Physics/PhysXPlugin/PhysXCharacter.cs
+++ b/OpenSim/Region/Physics/PhysXPlugin/PhysXCharacter.cs
@@ -233,11 +233,7 @@ namespace OpenSim.Region.Physics.PhysXPlugin
         public override Vector3 Acceleration
         {
             get { return _acceleration; }
-        }
-
-        public void SetAcceleration(Vector3 accel)
-        {
-            _acceleration = accel;
+            set { _acceleration = value; }
         }
 
         public override void AddForce(Vector3 force, bool pushforce)
diff --git a/OpenSim/Region/Physics/PhysXPlugin/PhysXPrim.cs b/OpenSim/Region/Physics/PhysXPlugin/PhysXPrim.cs
index c0e24fd67d..42bd119e37 100644
--- a/OpenSim/Region/Physics/PhysXPlugin/PhysXPrim.cs
+++ b/OpenSim/Region/Physics/PhysXPlugin/PhysXPrim.cs
@@ -207,11 +207,7 @@ namespace OpenSim.Region.Physics.PhysXPlugin
         public override Vector3 Acceleration
         {
             get { return _acceleration; }
-        }
-
-        public void SetAcceleration(Vector3 accel)
-        {
-            _acceleration = accel;
+            set { _acceleration = value; }
         }
 
         public override void AddForce(Vector3 force, bool pushforce)
diff --git a/OpenSim/Services/HypergridService/UserAgentService.cs b/OpenSim/Services/HypergridService/UserAgentService.cs
index 398a7b741f..38bcce6906 100644
--- a/OpenSim/Services/HypergridService/UserAgentService.cs
+++ b/OpenSim/Services/HypergridService/UserAgentService.cs
@@ -161,6 +161,14 @@ namespace OpenSim.Services.HypergridService
         {
             m_log.DebugFormat("[USER AGENT SERVICE]: Request to login user {0} {1} (@{2}) to grid {3}", 
                 agentCircuit.firstname, agentCircuit.lastname, ((clientIP == null) ? "stored IP" : clientIP.Address.ToString()), gatekeeper.ServerURI);
+
+            if (m_UserAccountService.GetUserAccount(UUID.Zero, agentCircuit.AgentID) == null)
+            {
+                m_log.WarnFormat("[USER AGENT SERVICE]: Someone attempted to lauch a foreign user from here {0} {1}", agentCircuit.firstname, agentCircuit.lastname);
+                reason = "Forbidden to launch your agents from here";
+                return false;
+            }
+
             // Take the IP address + port of the gatekeeper (reg) plus the info of finalDestination
             GridRegion region = new GridRegion(gatekeeper);
             region.ServerURI = gatekeeper.ServerURI;