Hi. Strange thing happened to my machine: Left for dinner and the computer was running in powersafemode as it use to do when im not present. When i returned it wouldnt wake up so i tried to reboot but then it wouldnt boot up at ALL!!!(?) Checked the Graphic-card and noticed that the fan wasn't running(??) Cleared CMOS and made another attempt which also failed. Changed Graphic-card, - no improvement, even tried with a PCI-Graph.card. another Failure. I don't get it, what happened?? The CPU-Fan is running, and the PSU is working. What's going on?( Got a Geforce FX 5900 XT grap.card/ASUS MB-Intel 875p chipset-800FSB-dual DDR400/1Ghz RAM/U-ATA 150/ winXP pro. Help!!