hi, i have a ibook G4 1GHz with 1.25gb Ram, and I tried o install leopard on it via target mode on my mac ini, with the leopard discs that came with the mini, but it gets to the screen and says it cannot be installed on this machine, is that because its locked to only mac minis-(the discs) or is it because it has a CD rom and needs a DVD rom. I also have access to a retail leopard disc in the near future , thanks