Quote:
One last idea. You can remove the device in the device manager. Somewhere I saw something that gave you an option in the device manager to show all devices, including those that had been installed but aren't installed anymore. You can remove any and all video devices, including those hidden ones, then try reinstalling the driver.


From command line:
set devmgr_show_nonpresent_devices=1
start devmgmt.msc
Then from with in device manager select "show hidden devices" from some menu.