Thank you for the replies. I'm glad to hear they are easy to work on. I am currently procrastinating from replacing a 2400c HD as I understand they are anything but user friendly. I guess now I have to start the hunt for 2.5" SCSI HDs. When this PoweBook came out, I was second grade and I wanted one so badly. Does 7.5 differ much from 7.6? Is 7.6 just for PPC?