If you have access to an electrical tester, check each rail to make sure you are getting voltage that is correct for each. That new vid card may have strained it just a bit with a larger demand if it's an old PS
I was just getting really pissed last night. Usually that is a sign I need a break from the game. I'll still be involved with our RP thing we have going but it'll be a week before i'm playing CW again.