Apple is seeding a new test build of Mac OS X 10.6.3 to developers, 10D552. The code is said to continue many of the troubleshooting efforts taken with the last two builds, correcting problems with AirPort, OpenGL, graphics drivers and QuickTime X, while improving the performance of 64-bit Logic. Also fixed are some compatibility and reliability issues with third-party printers, and a glitch which causes background message colors to behave badly in Mail.
