AMD has released this month's Catalyst 8.8 driver recently. This supports all DirectX 9 & 10 ATI Radeon video cards, which includes the Radeon 95xx+, Xxxx+, X1xxx, HD2xxx, HD3xxx, and HD4xxx series. The recently released HD4870 X2 is supported in this month's Catalyst driver set. Like every Catalyst monthly release, this driver set contains a few fixes for games running in Windows XP and Windows Vista.
List of Changes: http://game.amd.com/us-en/content/pdf/Catalyst_88.pdf
Download Link: Windows XP (32/64-Bit) / Windows Vista (32/64-Bit): http://game.amd.com/us-en/drivers_catalyst.aspx
Installation Instructions:
1.) Uninstall the ATI drivers from "Program Add/Remove"
2.) Install and Run Driver Sweeper with "ATI Display" selected. (It's recommended to do this, so that left over data from old graphics drivers don't conflict with the new ones.)
3.) Restart the computer.
4.) Install the new Catalyst drivers.