Hello all, I'm currently running 10.7.2. I've got some files on a USB flash drive which I would like to back up using Time Machine. It's only a 1GB drive, but I want to get a 16GB drive, and want to make sure this works first, so I'm using the 1GB as a trial run. The drive is uses the GUID Partition Table, and formatted as Mac OS Extended (Journaled). When I go into System Preferences > Time Machines > Options > Exclude these items from backups:, the drive appears. I select it, click remove (for it to be included in backups). It gets removed from the list, and I click Save to take me back to the main Time Machine window. Despite this, if I click on Options again, the drive will automatically reappear in the exclude list, and it is not getting backed up. From what I understand as long as the drive is formatted as Mac OS Extended (Journaled), Time Machine should be able to back it up, so I don't understand why it's not. Does anybody have any idea how I might be able to fix this so that I can back up files saved on a USB flash drive? Many thanks.