Not recognizing my external HD??

I open TM and it won't recognize my new external HD. What is the deal?? How do I fix this??

Are you sure it is formatted as Mac OS Extended or Mac OS Extended (Journaled)?
If it is, then it should be recognized. FCP X can detect drives on the fly, as they are mounted. I have tried ejecting and remounting drives while it is running and sure enough their availability is immediately reflected in FCP X's event browser.
Either the drives are not mac formatted, or there's something wrong in your installation. You could try mounting the drive before/after starting FCP X, and see if it makes a difference. Or trash the preferences, or ultimately uninstall and reinstall the software.

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