> Are you plugged in, or running on battery, when the MBP shuts itself > down? _______________________________________________ Plugged in. > Have you checked your preference settings under the Power Manager? > They may have been changed after you did the multiple reboots. Checked and nothing changed. Time Machine's inability to complete backups now seems to indicate some sort of system-level problem I suspect. All the best, Colin -------------- next part -------------- An HTML attachment was scrubbed... URL: http://listserver.themacintoshguy.com/pipermail/x4u/attachments/20080520/17f537cf/attachment-0001.html