diff --git a/OpenSim/Region/Physics/Meshing/Extruder.cs b/OpenSim/Region/Physics/Meshing/Extruder.cs
index 086261b870..a2c275c602 100644
--- a/OpenSim/Region/Physics/Meshing/Extruder.cs
+++ b/OpenSim/Region/Physics/Meshing/Extruder.cs
@@ -45,6 +45,8 @@ namespace OpenSim.Region.Physics.Meshing
 
         public Mesh Extrude(Mesh m)
         {
+            startParameter = float.MinValue;
+            stopParameter = float.MaxValue;
             // Currently only works for iSteps=1;
             Mesh result = new Mesh();
 
diff --git a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
index fb40830e49..36b3828458 100644
--- a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
+++ b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
@@ -124,7 +124,7 @@ namespace OpenSim.Region.Physics.OdePlugin
                        Quaternion rotation, IMesh mesh, PrimitiveBaseShape pbs, bool pisPhysical, CollisionLocker dode)
         {
 
-
+            _target_velocity = new PhysicsVector(0, 0, 0);
             gc = GCHandle.Alloc(prim_geom, GCHandleType.Pinned);
             ode = dode;
             _velocity = new PhysicsVector();