Simply put, after about 15 or so mins of gameplay, my PC shuts off. THis is the only game that it does it with. The temp for my card is fine, no overclocking (don't need it). Can't figure out what's wrong. I updated as I normally do (drivers, game, etc).
My Rig:
AMD Athlon64 3800+
3GB DDR400 RAM (Corsair XMS Pro)
1GB GeForce 7950GX2 by ASUS
All on a GIGABYTE K8 Triton SLI MoBo (nForce 4)
Running Windows XP Pro SP2