Mac Pro: Video frame rate appears to be slow in some programs

If you are running Mac OS X 10.4.7 on your Mac Pro and notice that the video in some programs or games appears to be slow, check the Mac OS X build number. The build number is available in the About This Mac window. To locate the build number:

• From the Finder, go to the Apple menu and select About This Mac.
• When the About This Mac window appears, click on the gray text that says "Version 10.4.7" directly under the large words "Mac OS X".
• This will toggle the text to give you the build number. It should say "Build 8K1079" or something similar.

If your build number is 8K1054 or anything less than 8K1079, use the Install discs that came supplied with your computer to perform an Archive and Install. This will update your computer's version of Mac OS X to Build 8K1079 and should improve the video performance.