I would download the latest videodriver for the card, to my desktop.
I would remove ALL traces of ANY videodrivers from the computer.
I would shutoff the computer and remove the videocard.
I would turn the computer back on and let it boot, denying any requests to install drivers.
I would shut it back down.
I would reinstall the videocard and boot back up.
I would deny all requests to install drivers.
When it completes booting, I would install the videodriver I downloaded.
Maybe even that .net(?) from the Windows Website. (i forget what it's called, or if it's at Windows or ATI)
That usualy does it for me!
I know it's all a long backward way to do it, but that's how I do it!
[This message has been edited by Boondawg (edited 05-10-2006).]