Sorry if this is a redundanr thread but my Dell XP machine was just reformatted and reloaded with all OEM drivers and software. Seemed fine for a few days. Recently it reboots without warning, up to 3 times an hour and afterwards the standard MS "Report this error" windows pops up. I feel I need to post the event logs to narrow this issue down but am not familiar with the protocol in this forum. Please let me know if you need more info. Thanks!