Whenever I play Far Cry 3 I run around and do stuff for a bit (~20-30 minutes) and my computer just shuts down. I've been playing it without any background programs, I've updated the game, I've even gotten the NVIDIA beta driver that is supposed to make Far Cry 3 run smoother. No warning or anything, one second I'm running around, the next second my computer is just off. Plz halp.
OS: Widows 7 Home Premium
Processor: AMD Athlon II x4 640 3.00GHz
RAM: 4.00GB
Type: 64-bit
Graphics: NVIDIA GTS 450