Hi,
I'm using an old iMac G4 and would like to install Ubuntu 10.10 (Power PC Architecture.) When I try to boot from the CD by holding down the C key, the computer screen stays gray for about 20 seconds and then spits out the disk. I've tried using the F10 key but that doesn't work either. My iMac can play regular CDs and DVDs fine. Please give some suggestions. Thanks!