Hi Friends, At the end of the day when I try to shutdown my computer, it reboots itself. It refuses to go to bed. Finally I hv to shut it down from its Close button or power bar. I applied scandisk, RegCleaner, Norton system Check, sfc, defrag, scanreg /fix etc, but nothing worked. This erratic behavior started suddenly two days back. It was shutting down normally ever since I installed win98SE. I hv Dell 450, 128 RAM, 26GB HDD etc Any help or tip will be appreciated. Paul Tiwana http://home.istar.ca/~cye/india.html . The NOSPIN Group is now offering Free PC Tech support at our newest website: http://freepctech.com