I have an iMac 27" that will not recognize my 3G WD MyPassport. It does recognize the older 1G WD MyPassport. I think I disconnected incorrectly. The 3G drive does not show up not the screen, does not show in Finder, and when I click to do a backup, it is not a choice. I have switched cords with the one that works and it makes no difference. Also, I have tried all ports. Is there anything I can do, or should I just buy a new one?
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