Hi everyone, this is my first post here. I'm just looking for some help with my problem and find this forum while searching on google. For last 2 days, my comps keep restarted unexpectedly without any warning or error. I 've unchecked the auto restart when system crash so it would give me bsod and the error but it just simply auto rebooted. I've re-installed my computer without installing anything device or software, unplug all the additional device(by the way my OS is XP pro SP1) and it still have same problem. I also update with microsoft and SP2, it still has the problem but less often.. but still.. screwed me up in the middle of homeworks.. I hope anyone would know the problem and help me identify it.. I am really clueless what is going on with my computer.. Thanks very much.