My sister has a small problem with her 12" PowerBook that has kinda grown bigger and bigger. She got a new iPod Nano as a leaving present from her work and when she plugs it in to her PowerBook it won't mount. I said to upgrade iTunes to 8.0 because that's what the new iPods need. But she's running Panther on her PowerBook and while I have a Leopard disc I don't know if it will handle it or if it will even work because it came with my MacBook Pro. Tiger was the way forward but there is no way of getting Tiger, Legally. A conundrum, eh? And if I were to acquire a disc illegally, would I still be able to do updates e.t.c I'm not sure exactly what the specs are but it has a G4 and I think 640MB of RAM. I thought Leopard required 1GB. I do have 2 512MB sticks from a MacBook and I know they work because I tried them in my MacBook Pro. Does that RAM fit the PowerBook?