So just a few seconds ago I was trying to install some new software on my Powerbook G4 800 mhz. I put in the cd and the optical drive starts making noises like it's trying to recognize the cd. But it never does. The thing never mounts and pushing eject won't eject it. I have to restart to get the cd out. I've tried it with several different cd's and it's the same result. I was just watching dvds on it last week. What happened?