Hi Sam, Apple's recommendation is to install OSX on your highest spec Mac and then you can image and restore that to your lower spec macs. This says to me that moving a G3 direct installation onto a G4 would not be wise as it will be missing things needed for the G4. It may work fine for you but there could be thing missing. Personally I'd install a new OSX onto the G4 and then transfer the G3's Home folder over to the G4 (must keep the same login names) to ease your setup process. Cheers, Coj Sam <kahuna2 at fast.net> I used Carbon Copy Cloner to transfer the 10.3.7 OS and apps from a Blue G3/400 to a Quicksilver G4. Seems to run fine; very well, actually. My question: Does OS X do a "universal" install? That is, does the 10.3.7 OS installed from scratch on the Blue G3 contain all drivers, etc. for the G4 hardware? Or do I need to reinstall and update the OS on the G4 via an archive and install to make sure it has the proper OS setup? Thanks - Sam