USB Drive doesn't show up in My Computer

I have a 2.5" Seagate 500GB 7200RPM laptop drive mounted into a USB case. I plug it into my USB port along with another one that goes from DC to a different USB port. In Device Manager, it is shown as "ST950042 0AS USB Device," which tells
me that it is being seen. However, when I open "My Computer," the drive does not show up. I have a failing drive that I keep all of my media files on and am trying to back that up to this drive, however, I cannot get a drive letter assigned to do open the
drive and back up my files.

Why doesn't my one still work?
i got my important work there!
If you seriously want some assistance with your problem, then start your own post and provide lots of details about your system and your situation. Absolutely no one can provide an answer to such an abstract question. You mus provide details,
lots of details.
Read the Microsoft KB @ http://support.microsoft.com/kb/555375 on how to ask for help and then start your own thread.
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ”

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