Hi. My Powerbook is having difficulty ejecting cds and dvds out of it's drive. When they eject they don't come out as far as they used to. On one occasion the disc actually refused to eject and it took multiple tries before it did. Has anyone ever come across this before? I still have a couple months of applecare and I am going to have this looked at but I am trying to gather some info before I go into the store since. Thanks.