Penumbra Overture Demo Help

[Americanaooni]

Well, I just recently downloaded the Demo for Penumbra: Overture, and it works fine in the beginning, but once I actually start the game, I can't see anything but the examining hand/eye icon and the inventory works. It looks like a broken TV, all white colored and fuzzy. I have Amnesia and when I downloaded that I got the graphic update so it should work. Any ideas on what is going on?