So I had a spare HDD laying around that I decided to put in an enclosure so I would have some extra storage space but more as a TM backup. The drive I used is a WD Scorpio Blue 320 gig. It came out of a click free kit. I basically took the drive out of the click free and slapped it into an enclosure I had bought so that it wouldn't run any of the built in backup software the click free had (built into the controller in the enclosure so no way to remove it otherwise) I used this setup to backup my old PC prior to my Mac transition and it worked fine. It also made it fairly easy to transfer everything over to the Mac and went off without a hitch. After getting that done, I reformatted to HFS journaled to use as a TM backup device. It will run for about 5-10 minutes and then sporadically start ejecting itself until I unplug it. At first I wasn't sure if it was the enclosure (Dynex 3.0 enclosure) or the drive its self that was having the problem so I reformatted the drive to work on my old PC and tried backing up on it and it worked fine. I have also installed a different (Seagate Momentus) drive from when I upgraded my PS3 in the enclosure and tried that on the Mac and it worked just fine too. Only problem with that is the seagate is a 60 gig. Nowhere near big enough to use for TM though it did at least let me backup my music and photos so that is at least a plus. My main question is has anyone else ever ran into this scenario? I have a hard time believing its not something simple as the WD did run with the Mac long enough to pull all the files I had backed up on the PC. Any suggestions on what I could do to fix this?