I actually have the same problem when entering a door...

Though, since I hav Vis Studio installed, I can see that some kind of exception or some such is beein thrown. Unfortunately, I cannot see the content of the debug-dialog since the game is blocking the view frown

My system:
- XP sp3
- Dualcore Centrino with an ATI-mobile graphics card (Radeon HD 3400), 3 GB Ram

Actually I even cannot install the Patch to version 1.03 (cannot identify ystem version debug(xxxx-something) 1.01 and 1.02 worked...).

I tried to follow all guids here, installed new HW drivers, PhysiX etc. but still the game crashes...

I think it may be related to 2 things:

a) I tried out the demo (and deinstalled it - long ago)
b) I bought the online version (so no DVD... but the unlocking worked and, well I can play al long as I do not enter any doors...)

Cheers, afalon