I have begun having a problem with my computer and I don't know what is causing it. I am currently running an XP 3000 with 1gb of memory (512 Corsair XMS PC3000 and 512 Kingston Hyperx PC4000 all @ 333mhz) . The cpu is cooled with a Thermalright SLK-900a. The video card isa Radeon 9700 Pro. About the only game I play is BF1942: Desert Combat. Within about 15 minutes of starting the game, my computer will all of a sudden restart. I have tried lowering memory settings, blowing any dust out of my case and off HSF, and underclocking the VPU. Nothing works. Any ideas on what might be causing the restarts?