Apple is already distributing a third beta seed of Mac OS X 10.6.2 to developers, sources say. Called 10C527f, the build adds fixes for 13 different components of the OS. Of special emphasis are corrections for video errors, including several GraphicsDrivers problems which can cause screen flickering, crashes in OpenCL or stuttering while playing 1080p movies in QuickTime X. QuickTime itself has been fixed to allow some movies to play properly.
Eliminated iMovie problems include some with color shift, and a crash caused by looping previews of titles in the skimming palette. The build separately makes fixes to iChat, and reliability improvements for iLife, iWork, Final Cut Studio, MobileMe, iDisk and Safari plug-ins. Developers can download the seed as a 483.5MB package.