Overall the 10.4 release did not add significant new features, at least not for Eyefinity users. Specifically, it did not release support for 5x1-Portrait mode. Notable new features are enhancements to the ATI Catalyst video playback and Video Transcoding. It specifically added support for the Windows 7 Drag and Drop video converter in the Catalyst Control Center. Gaming updates include:
Desktop Cursor - Fixed issue of intermittently appearing englarged
Eyefinity Configuration - Pressing the "Page Down" button while configuring the last display in Eyefinity group will now properly switch to the next display instead of closing the bezel user interface
Bezel Compensation - Shortcut keys to configure the bezel now functions properly
S.T.A.L.K.E.R. - Clear Sky - Performance Updates: 3% improvements on 5700 and 5800 series. 5970 series saw 6% improvement.
Battlefield: Bad Company 2 - Maps no longer takes unusually long to load for ATI RadeonTM HD 5000 Series
Catalyst Control Center - Advanced options no longer becomes disabled after connecting second display in clone mode
Total War Series - In-game anti-alias now functions properly when other in-game options like Volumetric Effects are enabled in "Empire: Total War" and "Napoleon: Total War" games
NecroVisioN - Game now launches properly in DirectX 10 mode
Chronicles of Riddick 2 - Blank screen no longer observed when 8X anti-aliasing is applied
Shattered Horizon - Flashing no longer visible CrossFireX enabled
