Here you go:
http://downloads.guru3d.com/download.php?det=1275
Run that if you need to (don't run it if you don't need to).
Make sure anything ATI related is gone from your system, then simply reload the latest drivers and you should be good to go.
By the way, the first screen that comes up should be slow for a sec, but I think that is because the drivers are initializing for the first time. After the first 5 seconds, then it should move instantly quick. Maybe your driverrs got stuck in the initializing phase? Just a theory, but its the best I can come up with at 7:22 AM on a Saturday! Still half asleep.
-S