Here's my PC's problem. Whenever it would turn on as soon as windows xp would load the entire thing would go out. The computer was still on and the monitor was still functioning. Later it would not even get that far. I originally thought that all the start up information had corrupted and started to reformate my hard drive. After I interrupted the startup to boot from disk it happened again. So I tried to see if there was a problem with the monitor or the cable by testing another monitor I knew worked. Same problem. I'm guessing that the problem is in fact the video card. Opinions?