I had Catalyst 6.7 or 6.8 (6.8 I believe) and had probs with that, then instaled 6.9 and still had the same probs...
Uninstalled ATI drivers, did Driver Cleaner, then installed Omega, nothing changed, did Driver Cleaner again and installed 6.9 again and now it works...
Hope that answers your question...
Ah, I see. Obviously there was a driver conflict somewhere since after using the Driver cleaner and installing a set of certified ones the problems went away. I didn't mean to come off blunt, but just a couple months ago there was a guy who was complaining how ATI sucked because
he installed a set of drivers from ATI that wasn't compatible with his 9250. As long as you use DriverCleaner Pro in safe mode when switching out drivers, you'll never have to worry about driver conflicts.
I could not get a simple 1680x1050 res setting with the official ATI drivers and I tried everything from monitor drivers to powerstrip etc....,I had to use latest Omega drivers,don't ask me why since I have no problem with Nvidia drivers on my other PC at this res.
My guess is you were trying to set the resolution at 1680x1050 while having a greater than 60Hz refresh rate set somewhere else. I've went through drivers ranging from 6.3 to 6.9's, Omega's, XG WarCat's, and WHQL abroad with an X1900XTX, 9250, X1900GT, X1900XT, and an X1950XTX and I have never had that issue.