Penumbra: Black Plague Demo - Download Here!

[Umbra]

I have a problem with BP Demo - when I try to move some thing by Left Mouse, it's opening a window "Black Box" with text:

!!!GAME CRASHED!!! READ THIS:
The cause of yhe crush is probably one of the follows:
1.You do not have the latest drivers for your graphics card
2...........................................................sound card
3.You have made a setting that your computer dose not like.
To reset settings, go to My Documents/Penumbra Overture/ and delete settings.cfg in the correct episod folder.

Exception Reason
PenumbraDemo.exe caused an EXCEPTION_ACCESS_VIOLATION in module PenumbraDemo.exe at 001B:004A3A6C

What should I do?