OK so, I just installed an Nvidia GTX280 and whenever i open WoW my PC shuts down. I can do anything else with no problems, but as soon as WoW loads me into Dalaran, it shuts off. I tried changing the video settings at the log in screen before i log in and as soon as i hit the effects tab it shuts down.
Config:
Win XP Home 32bit
ASUS P5N-T Deluxe Motherboard
Intel Q9550 @ 2.83GHz
4 gigs Corsair Dominator Ram
Nvidia GeForce GTX280
Okia 650-ATX PSU