Hi,
that's a shame. Do you have windows 8? I guess yes. Be sure to use the ATI Catalyst 13.12 or 13.11. I solved this problem by this:
Go to start, search for device manager and look for graphics cards. Choose the Windows as Series 7900 and click update driver and select catalyst installer

Your other not recognized cards will be maybe located in Audio Something category. Install driver same way.
Hope it helps.
If not, you can try PM me..
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