My external hard drive is not being recognized by my MAC Pro.  The icon does not appear on my desktop when I connect it to the MAC.

My external hard drive that I use as a backup is not being recognizedc by my MAC PRO.  Usually I get the icon for the backup, when I attach it to my computer, but that isn't happening.  What can I do?

Well, I tried all of your suggestions and they didn't work -- no surprise because I was trying to backup to my external c.d. disk.  Duh!  The application for the home is in the mail.

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