Apple also released the Leopard Graphics Update 1.0 along with Mac OS X 10.5.2 that improves the stability of unspecified Macs as well as their compatibility with certain programs. The Leopard Graphics update becomes available once you update to Mac OS X 10.5.2, you need to update the OS first. The size of the update is 48.9MB and Apple has not released any details about the Update. You can directly download the update from here, but don’t download or run the update till you have updated your OS to 10.5.2.