A co-worker's G4 700 mhz iMac was running 10.2.8 and was having problems loading pictures etc, so I volunteered to upgrade her to Tiger so she could catch up (her system meets the requirements and has 768 ram) but after inserting the disc and going through the first steps after boot the machine would say "Disc cannot be installed on this volume". After an hour of fiddling around, I decided to hook her machine up via firewire and "Target" boot it and erase her hard drive from another co-worker's ibook. After that, I tried again with the disk and no deal. So I had to install 10.2.0 from scratch and after that I again tried with the family pack OSX 10.4 disc and still no dice. What am I doing wrong?? Am I not allowed to jump from 10.2 to 10.4 directly? Is their a firmware update I should know about for this 5 year old machine?