On Nov 2, 2007, at 9:30 AM, Crandon David wrote: > Legalities aside, can a G4 (whose installation disks I've lost) be > updated to Leopard with the disks that come with a new Mac that has > Leopard already installed? It's hard to say. New Macs nowadays often come with a model-specific version of OS X: http://docs.info.apple.com/article.html?artnum=25784 ___________________________________________ Randy B. Singer Co-author of The Macintosh Bible (4th, 5th, and 6th editions) Macintosh OS X Routine Maintenance http://www.macattorney.com/ts.html ___________________________________________