First off, saying your computer is "pretty decent" tells us NOTHING. I still consider my old Thunder bird "pretty decent"
But, from what you said, I'd suspect a power supply problem. Either too weak or just a faulty one.
__________________
Desktop * Athlon X2 4200 | 2G RAM | 160G HD | 7600GT
Laptop1 * C2D T5550 | 3G RAM | 120G HD | Intel x3100
Laptop2 * C2D T5250 | 2G RAM | 160G HD | Intel x3100
|