Topic: 802 driver will not install - Help please!

After playing with the AES/ADAT settings on my 802, my AES option disappeared from the Windows-7 list of default playback devices.
So...  I thought I would resort to uninstalling and reinstalling the driver...
Now the driver just says "Install Failed"  :-O
Help!
Short of reinstalling Windows from scratch is there a solution to this???

- Thanks.