a)You could try rolling back the video-driver to the previous version.
b)you could uninstall the driver and reinstall from a fresh download.
Usually when there's a problem with a new driver -- the un/reinstall is the best method. Especially if you installed the new drivers over the old ones-- without
uninstalling the old version first. Video drivers are so integral to a PC's function ...that the slightest error causes major problems.
Many people recommend
never installing video drivers without uninstalling the old ones first-- though I have been guilty of doing it -- I have sometimes paid the price for being in a hurry.
ATI actually has a driver-cleaner that will remove old driver files for you:
https://support.ati.com/ics/support/...estionID=20870