Before I continue to lose my mind over this issue, if someone can steer me in the right direction, I would be most grateful. I want to use an iBook G4 to manage iTunes and a new 6th generation iPod nano. From what I can tell from Apple, the minimum OS requirement is Leopard 10.5.8 -- the current OS on the iBook G4 is Tiger. I have found an aftermarket full-install Leopard, which the guy selling it says is 10.5.6, which is a new one on me. If that is true, and I buy his box, will Apple Software Update auto-update it to 10.5.8? Or have they abandoned all support to anything earlier than Snow Leopard? The nano won't work without 10.5.8 and I believe that is as new an OS that will operate on a pre-Intel mac. Am I on the right track?