I have a LaCie Rugged HD (the one with the orange bumper) connected to my new 2.93Ghz iMac via FW800, doing daily backups via SuperDuper! However, lately it will sometimes not respond when I click on it in the Finder, and then I'll get the forever spinning Beachball. It's been locking up Finder (which won't respond to a Force Restart), iTunes, pretty much everything, and until I figured out what it was, I was having to do several forced restarts on the computer. Finally, I figured out it was the LaCie HD, and physically unplugging its FW cable was the only way to unlock my entire iMac. It would not respond to ejecting it via Finder. Is this normal? Which one is typically at fault, the iMac, or the HD? Of course, I'd love to try a different cable, but don't have another FW 800 cable, and of course the new iMacs don't have FW400 now. I haven't had any issues with my external WD drive connected via USB. I'm just curious if my FW port on my iMac could have an issue.