I have a 1.5 Ghz Powerbook G4 with 1.25 GB of memory, the OSX is upgraded to Leopard. I finally got my wife a new imac, sent the photos to her computer, deleted a lot of unnecessary files on my G4 and completely backed it up on an external hard drive. Now I would like to COMPLETELY wipe the disk and reinstall so that I can have a fresh machine. My question is, how should I go about that? I seems from what I have read that I need to use the original 10.3.7 install disk rather than the leopard or simply trying to copy from the external hard drive. Is that correct? And do I need to do anything with the .Mac activation key? Any advice would be appreciated.