I've got a Powerbook G4 1.25 ghzModel A1046. My hard drive died and I don't have any software disks since I bought it used several years ago. When I replace the HD, do I have to find disks specific to the exact model ? I've seen conflicting opinions on the different tables I've accessed on the internet. I know what the highest version I can run is, but but do I have to start back at the orriginal version and upgrade?? A definitive answer would be appreciated.