Ok after mulling through forums and google searches I finally purchased leopard retail. here are some of the issues i encountered: -g4 wont read dvd...for some reason -tried to mount a firewire drive and install the OS but G4 wouldnt boot from harrdive -tried remote install, but i think that requires a newer version os X ( G4 was at 10.3.9) so finally i connected the imac to my macbook via firewire and put the drive into target disk mode. and low and behold through disk utilities i managed to wipe the drive and install leopard. before i could do that it made me reformat the imac drive to a GUID partition. and once it finished it rebooted my macbook and took me through the Leopard into video and asked my info. However once i unmounted my imac and turned it on, it gave me question mark folder, cant find the harddrive and i have NO IDEA what to do.... i hope this wasnt too long, but i could really use some help.