I own a PowerBook G4 Version 10.3.9, 12 inch, 1.33 GHz 1.25 GB DDR, SD RAM, bought on 2004. I works great. Slowly but surely I have noticed that I cannot get a lot of downloads. Too old of an operating System. My husband just bought me a 16 gig I Pod Nano. I know that my computer will not support this I Pod what kind of update can I get so it will support it? My computer lingo is very limited. Please be kind.