Penumbra Overture White Screen problem!

[Gustavia]

I have bought the Penumbra collection on Steam and I installed the games and when I start Penumbra Overture the game is all white! I have seen people with the same problem but what they tried that fixed the problem have aint worked for me. I am playing in 1920x1080 and I have tried reduce the graphics but and when I get a picture the game looks really ugly. I don't really want to change the resolution so any idea how to solve this problem anyone?