Hi all... I've one big problem here... Since last 5 days, my PC keep on shutting down at any time without any obvious reason. No matter whether I run any software or just leave the PC open it will just keep on shutting down on its own. I've tried formatting my hard disk a couple of time in case of any undetected spyware, virus, worm, etc. but the prob. remains. I've also change my CMOS battery just in case but to no avail. Any suggestions anyone?