The 80 gig hard drive on my PB 1.5 Ghz G4 died. I have the contents backed up . I went to macservice.com and ordered the 250 gig western digital drive which I am assuming will be shipped back to me blank. Here is my question: How do I install Leopard on a blank unformatted hard drive? Can I stick in the DVD and start up holding the C key? Will the computer even start if the drive is blank? Thanks for you help.