As many of you well know ATI has been having issues with their drivers. Hopefully this new driver will solve many of your problems. This new driver boasts:

OpenGL Performance Boosts: CATALYST 02.2 provides significant performance improvements in OpenGL games across the entire RADEON product line, especially at high resolutions.

Up to 25% improvement in Quake III (1600x1200, Max Quality)
Up to 35% improvement in Return to Castle Wolfenstein (1600x1200, High Quality)
Up to 50% improvement in Serious Sam: The Second Encounter (1600x1200, Extreme Quality)

Got ATI? Get Catalyst!