ATI posted new CATALYST drivers today, which are now at version 4.1. I haven’t tried them yet, but the following quote from the Release Notes is easy to miss, so I’ll post it here as a warning:
Known Issues
…Significant performance loss is noticed in Wolfenstein: Enemy Territory. This issue is already resolved and a fix will be available in the next CATALYSTâ„¢ driver release
So, better skip these and try the next version.
Cheers.



I’ll stick to the trusty 3.9 till 4.2.