Hi Jim Leopard will install on any Mac that has an Intel, a G5 or an 867 mhz or faster G4 processor. if your G4 is fast enough, yes, you can install it. I have a B&W G3 upgraded to a 1Ghz G4 and I'm interested to see if I can install Leopard on it. Installation is usually insert the DVD, double-click the installer, authenticate and install. Simple and straight forward. I ordered my Family Pack for our household macs as well as a $9.95 upgrade for my recently purchased MacBook Pro. Can't wait! ---- Scott Strawbridge | Graphic Artist scotts1@xxxxxxx http://homepage.mac.com/scotts1 http://www.scottstrawbridge.com http://www.liquidphoenixdesign.com msn: scottstrawbridge@xxxxxxxxxxx ichat/aol: scotts1@xxxxxxx yahoo: straws4@xxxxxxxxx ----------------------------------------------------------- MUGLO information at <http://www.freewebs.com/muglo> Manage list subscription options at <//www.freelists.org/list/muglo> -----------------------------------------------------------