ATi Catalyst 6.12
If you own a Radeon video card you should head over to the AMD/ATi site and grab the new ATi Catalyst 6.12 drivers. This release of the ATI Catalyst software suite introduces DirectX video acceleration for CrossFire enabled configurations. If you are using the GPU Folding@Home client you should not upgrade to Catalyst 6.12. Apparently there is an issue the new drivers and Stanfords GPU folding client that will be resolved in the next Catalyst release.
Catalyst® Control Center CrossFire: Attempting to resume from a standby state no longer results in the Windows XP operating system failing to respond when using a ATI Radeon® X19x0 CrossFire Edition series of product. Using PowerDVD to playback a DVD no longer results in the playback appearing choppy.