I have bought Bioshock few days ago and played for some time. Then it started crashing at the Medical Pavilion. I get a blue screen and my laptop restarts. Here are my laptop specifications:

Sony Vaio FE21B
Core Duo 1.66GHz, 1GB Ram
GeForce Go 7400 256MB, DirectX version 9.0c

I am running the game on 800x600 with medium detail level and the game runs quite smoothly at random (and sometimes the same) places.

To fix the problem I tried do things described here but it didn't help. Also, I couldn't find new drivers for my video card.

Any ideas?