Fatal Error on closing AutoCAD Map 3D 2012

I run Windows Vista Business Edition with SP2 and AutoCAD Map 3D 2012.
My problem started few days ago when closing AutoCAD Map, I always get a fatal error.
I posted the complete details of the error message below.
How can I be able to fix it?

AutoCAD
FATAL ERROR: Unhandled c0020001h Exception at 777b70cdh
