--- Operating System, Graphics card ---
Windows 7 x64, Nvidia GeForce GTX 560 ti 1gb.
--- Blender version with error, and version that worked ---
Error Version : Blender 2.66
Working Version : Blender 2.65
--- Short description of error ---
Casting a ray on a rigid body, triangle mesh bounded object causes the Blender Application to close.
--- Steps for others to reproduce the error (preferably based on attached .blend file) ---
Click Start Game or Press P in attached blend.