Graphics bug while in fullscreen

[Jaf5489]

Hello,

I recently downloaded the Amnesia Demo off of Steam. While in game, I noticed a strange graphics bug going on: While looking around, this happens. The first 10 seconds show it best. Basically, while looking around, the screen will distort and boxes appear around the screen. This only occurs while in fullscreen, windowed mode is fine. I have tested it with many different resolutions and settings, but no luck. All of my drivers are up to date.

My specs are as follows: (Now I know this is a DINO of a PC, but it passes all of the requirements for Amnesia and runs it well, besides this glitch)

Nvidia Geforce 6200
Pentium 4 3.20 ghz
2 gigs of RAM
Windows XP 32 bit

Thanks, I appreciate it!