Overture causes PC to restart!?

**GothicFighter** · 06-04-2010, 10:59 PM

Hi there. I've installed Penumbra Overture from the Penumbra Collection, applied the 1.0.3 patch and started the game. I went to options to modify the settings and when I exited the game so the settings would apply, the PC restarted. I've ignored this and played the game for a while. After pressing exit the PC restarted again. I really want to play this game cuz' it looks awesome. Here are my specs:
AMD Phenom II X2 555 BE unlocked to X3
Gigabyte ATI HD 5770, 1GB
2GB DDR3 Kingston HyperX, 1333Mhz
MA785GT-UD3H
Delux PSU, 500W
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Please help me if you can.
Cheers!