Index: source/gameengine/Ketsji/KX_RayCast.cpp
===================================================================
--- source/gameengine/Ketsji/KX_RayCast.cpp	(r‚vision 13579)
+++ source/gameengine/Ketsji/KX_RayCast.cpp	(copie de travail)
@@ -77,6 +77,14 @@
 		if (callback.RayHit(info, result_point, result_normal))
 			return true;
 	
+		// There is a bug in the code below: the delta is computed with the wrong
+		// sign on the face opposite to the center, resulting in infinite looping.
+		// In Blender 2.45 this code was never executed because callback.RayHit() always 
+		// returned true, causing the ray sensor to stop on the first object.
+		// To avoid changing the behaviour will simply return false here.
+		// It should be discussed if we want the ray sensor to "see" through objects
+		// that don't have the required property/material (condition to get here)
+		return false;
 	
 		// skip past the object and keep tracing
 		/* We add 0.01 of fudge, so that if the margin && radius == 0., we don't endless loop. */