You could have either a. A power supply about to go bad. or b. A power switch problem. It could also be a number of other things, such as a "Wake on..." feature in your BIOS, or if it's on standby, your may getting some ambiant "noise" from your mouse or keyboard. The best bet is the power supply. It's not hard to replace. Best of luck. David Hightower, Novice PC Mr. FixIt:) [log in to unmask] -----Original Message----- From: PCBUILD - Personal Computer Hardware discussion List [mailto:[log in to unmask]]On Behalf Of Dolores Dewbury Sent: Saturday, April 13, 2002 7:22 AM To: [log in to unmask] Subject: [PCBUILD] computer has a mind of its own A friend has a computer that restarts all on its own - any clue as to what would cause this? thank you, dolores dewbury The NOSPIN Group Promotions is now offering Mandrake Linux or Red Hat Linux CD sets along with our NOSPIN Power Linux CD... at a great price!!! http://freepctech.com/goodies/promotions.shtml The NOSPIN Group provides a monthly newsletter with great tips, information and ideas: NOSPIN-L, The NOSPIN Magazine Visit our web site to signup: http://freepctech.com