As said, you can only roll back if the previous version was installed,
then find the card in hardware devices, double click it and find where
it says roll back driver, remember if it was never installed you will
be sent back to Windoze VGA mode or similar, whatever was there
before.
New cataylists are out now, the link is here somewhere, just make sure
it's a final release windoze certified driver and not a Beta driver.
But IMO if it ain't broke don't fix it.