As the owner of an aging Lombard, I was really excited when the hint for accelerating the Rage Pro LT card was published. Then 10.2 came out, and the hack needed to be repeated. But now we also had to update the extensions cache with the command (as seen on Accelerate your Mac):
% kextcache -k /System/Library/ExtensionsNow, sometime around updating to 10.2.1, the driver was lost again. Sure enough, it had been removed from the info.plist file in the ATIRagePro extension. After hacking the info.plist file again, and re-running the kextcache command, and then rebooting - still no graphics acceration.
% sudo rm /System/Library/Extensions.kextcacheAfter that, you should be good to go!
Mac OS X Hints
http://hints.macworld.com/article.php?story=20021003055803561