diff -Nur opensim-/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs opensim/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs
--- opensim-/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs	2009-08-11 22:52:48.000000000 +0900
+++ opensim/OpenSim/Region/Physics/OdePlugin/OdePlugin.cs	2009-08-11 22:53:56.000000000 +0900
@@ -2930,8 +2930,40 @@
                 {
                     foreach (OdeCharacter actor in _characters)
                     {
-                        if (actor != null)
+                        if (actor != null) {
                             actor.UpdatePositionAndVelocity();
+
+							// by Fumi.Iseki  for falling at SIM boundary
+							d.Vector3 vec = d.BodyGetPosition(actor.Body);
+
+							//if (vec.Y<=0.0f || vec.Y>=255.95f || vec.X<=0.0f || vec.X>=255.95f) {
+							if ((vec.Y<=0.0f || vec.Y>=255.95f || vec.X<=0.0f || vec.X>=255.95f) && !actor.IsColliding && !actor.CollidingGround) {
+								if      (vec.Y<=0.0f)   vec.Y = 0.1f;
+								else if (vec.Y>255.95f) vec.Y = 255.95f;
+								if      (vec.X<=0.0f)   vec.X = 0.1f;
+								else if (vec.X>255.95f) vec.X = 255.95f;
+
+								float height = _origheightmap[(int)vec.Y * Constants.RegionSize + (int)vec.X];
+								if (actor.Flying) {
+									if (vec.Z  <  height + 2) {
+										vec.Z = height + actor.Size.Z/2;
+										actor.Velocity.Z = 0;
+										actor.IsColliding = true;
+									}
+								}
+								else {
+									if (vec.Z < height + actor.Size.Z/2) {
+										vec.Z = height + actor.Size.Z/2;
+										actor.Velocity.Z = 0;
+										actor.IsColliding = true;
+										actor.CollidingGround = true;
+									}
+								}
+
+								actor.Position = new PhysicsVector(vec.X, vec.Y, vec.Z);
+								d.BodySetPosition(actor.Body, vec.X, vec.Y, vec.Z);
+							}
+						}
                     }
                 }
 
diff -Nur opensim-/bin/OpenMetaverse.dll.config opensim/bin/OpenMetaverse.dll.config
--- opensim-/bin/OpenMetaverse.dll.config	2009-08-11 22:56:29.000000000 +0900
+++ opensim/bin/OpenMetaverse.dll.config	2009-08-11 22:56:49.000000000 +0900
@@ -1,7 +1,7 @@
 <configuration>
     <dllmap os="osx" dll="openjpeg-dotnet.dll" target="libopenjpeg-dotnet-2.1.3.0-dotnet-1.dylib" />
     <dllmap os="!windows,osx" cpu="x86-64,ia64" dll="openjpeg-dotnet.dll" target="libopenjpeg-dotnet-2.1.3.0-dotnet-1-x86_64" />
-    <dllmap os="!windows,osx" cpu="x86" dll="openjpeg-dotnet.dll" target="libopenjpeg-dotnet-2.1.3.0-dotnet-1" />
+    <dllmap os="!windows,osx" cpu="x86" dll="openjpeg-dotnet.dll" target="libopenjpeg-dotnet-2.1.3.0-dotnet-1-i686" />
     <dllmap os="!windows,osx" cpu="s390x" dll="openjpeg-dotnet.dll" target="libopenjpeg-dotnet-2.1.3.0-dotnet-1-s390x" />
     <dllmap os="!windows,osx" cpu="ppc64" dll="openjpeg-dotnet.dll" target="libopenjpeg-dotnet-2.1.3.0-dotnet-1-ppc64" />
 </configuration>