I have a 12" G4 that will not hold a CD in its drive. Whenever you put any CD or DVD in, it pulls it in, makes a little noise and then spits it back out in about ten seconds. Doesn't matter if its a music CD, a boot disk, a Tiger DVD, anything. The machine was rescued from a co-worker that could not fix it, it origianlly would not boot, and of course I couldn't boot from a CD to do a disk repair, 0nor would target disk mode work. I eventually removed the HD and attached it to the IDE bus of my desktop G4 and repaired it with first aid and now it works fine except for the CD issue. Any ideas?