Hello all! I just updated my computer to 10.5.3. After that, I decided to perform a Time Machine backup. The TM has been "Preparing Backup" for over an hour. I have tried restarting the backup drive, rebooting the computer, and repairing permissions on both drives. None of them have helped. I can restore older files using TM. During the "Preparing for Backup" process, the backup HDD is active- so it doesn't seem to be frozen. The last backup performed by TM was just before the software update. TM works flawlessly before the update. Can anyone tell me what else I can try to get TM working again? Completely erasing the backup drive is not an option. I have a lot of TM data that I would like to keep. My backup drive is connected via USB. Thanks a lot!