Hi, my problem is very unique and so far i have not find a solution. The problem i'm having is with both the shutdown and restart of windows XP. I hope every 1 have notice that at the last moment of the system shutdown there is a (tick) sound, i think its from the hard drive then the system powers off, which the black out of the monitor and final spin down of the hard drive. In my case however, When i execute either the two command, the computer responds readily, programs closes and seems nonthing is wrong. Then after the (click) sound the system does not power off nor reboot, the screen is on and the had drive spins up again then (click) again and this process happens 4 times, and then finally the system powers it self off or reboots. I know the above may sound confusing but its really hard to explain with out you experince it. I've ran Win98, WInME, Win200 and non of them acts this way, only XP I hope some 1 can solve this problem i'm having or give me some ideas My Specs: p3 550, Gigabyte BX2000+, SB Live, IBM deskstar 20GB, MS usb mouse, usb modem.