ok. here is the problem... i started getting this message error: DRIVER_IRQL_NOT_LESS_OR_EQUAL. and my pc would randomly restart on its own... but it would work just fine in safe mode... i try to uninstall win xp and reinstall it but it would just keep restarting as soon as it loaded the screan with the dif. options. so i found this prog on the net called killDisk... supposed to formatt all win. os's with no complications... so i ran that and it got almost done formatting and BAM a restart. and ever sence then my moniter has not worked but my pc will boot kinda. every now and then if i hit the restart button my pc the moniter will flicker like its tryin to come on but it never does... i cant try to fix it if i cant see nothing... ive removed all hardware from my pc and reinstalled everything, ive tryed 2 dif. video cards.. a old voodoo 3 i had laying around and my current card nvida 5200fx card neither one seems to bring on the moniter... i tested the moniter out on a laptop and it worked fine. i dont belive this to be a power supply prob cause the pc boots all lights come on and the network card light comes on, all fans work etc... any takers?