Greetings, Let me start by apologizing if this question appears already in the forum somewhere. I searched extensively and nothing here seems to match my issue exactly, although some are similar. I upgraded the HD in my MacBook (10.5.6), and the drive that I removed is now in a USB enclosure. I'd like to use the old drive as a portable, external. When I connect the old drive to my MacBook, the drive appears on the desktop as "Mac HD". I've used Disk Utility to try to: Verify the drive and volume Repair the drive and Volume Erase the drive and volume Partition the drive into 1 GUID partition Do all of the above booting the machine from the MAC OSX 10.5 DVD Do all of the above on a separate machine (MacBook Pro 10.5.6) Disk Utility beachballs, and I cannot eject the drive. In fact, Force Quit doesn't actually work until I yank the USB cord out. I'm at the end of my rope for this one. I appeal to the forum's wisdom for council.