Robert A. Virzi said: >So the question still stands, is there a way to roll back one version >of the OS? You can fall back to a previous version of OS X by simply doing an archive and install of the earlier version, assuming that you are falling back to an earlier version within the same major release. (e.g. you can fall back to OS X 10.4.1 from 10.4.8 by doing an archive and install from an OS X 10.4.1 installer.) However, to fall back to a previous major release, you will have to backup your drive, erase it, and reinstall the earlier major release of OS X, and then restore your data. http://docs.info.apple.com/article.html?artnum=25404 Randy B. Singer Co-Author of: The Macintosh Bible (4th, 5th and 6th editions) OS X Routine Maintenance http://www.macattorney.com/ts.html