ATI has released a new Catalyst Beta Driver for Windows Vista Build 5270. Thanks Mark.

ATI is one of the first graphic providers to make a 64-bit driver that supports the Longhorn Display Driver Model (LDDM) – the Microsoft Vista revolutionary graphic driver standard – as well as the first to provide LDDM drivers for integrated graphics processors. By making LDDM drivers available more than a full year prior to Windows Vista release, ATI provides developers with a stable, feature-enabled and performance-optimized platform for application development. ATI is also the first to provide Catalyst® Windows Vista driver feedback via our Catalyst® Crew Feedback program.

Product series supported:
Radeon® 9500, 9550, 9600, 9650, 9700, 9800, X300, X600, X700, X800, X850
Radeon® X1300, X1600, X1800, X1900 series
FireGL™ X1, X2, X3, Z1, T2, V3100, V3200, V5000, V5100, V7100
FireMV™ 2200
Mobility™ Radeon® 9550, 9600, 9700, 9800, X300, X600, X700, X800
Mobility™ Radeon® X1300, X1400, X1600, X1800
Mobility™ FireGL™ V3100, V3200, V5000, V5100
Radeon® Xpress 200, 200M

Catalyst Beta Driver for Windows Vista Build 5270