Got at least 2 of these b*stards here. One has failed and, thanks to yet another user who doesn't follow backup procedures, contains an important mail file. The drive does not currently register at boot at all. I've noted comments re: waiting and cooling down the drive, I'll try both. Should these fail, what do you think, would transplanting the PCB from currently working drive onto the dead one get it to register properly? We think the 2 drives are identical but don't yet have possesion of the second one to confirm that.