Vista updates address compatibility, performance
Microsoft has issued a couple of updates for Windows Vista that address performance and compatibility problems with the new operating system. The performance update addresses poor memory management performance, AVI corruption, and slow estimates when copying large files, among other issues. With the compatibility update, Microsoft has apparently fixed "visual appearance issues" in games, poor playback quality with HD DVD and Blu-ray movies, and a tendency for GeForce 8-series graphics drivers to stop responding. The compatibility update also resolves other issues, including this vague gem: "The computer stops responding or restarts unexpectedly when you play video games or perform desktop operations."
The performance and compatibility updates are available in 32-bit and x64 flavors. WGA validation is, of course, required. Thanks to Ars for the tip.