Greg Nembhard wrote: > I have G4 800Mhz 512mb QuickSilver 2002 with OS 10.1 > My sister has a Mac Book Pro with Tiger Installed and she has the discs. > The discs say OS X 10.4 for Macbook Pro. Will this work as an OS on my > G4. Help, this is my first Mac and I don't want to screw it up. Most probably not. Assuming those discs came with her computer, she's several CPU upgrades above (released later than) your QuickSilver, and as I understand it, Apple issues each set of OS discs for the machine it's intended to accompany. IOW, I don't think they'll work with yours... keith whaley