I just installed snow leopard on my macbook pro. Now, my installation cd won't eject. Every time I hit the eject button, right click and eject it, or drag the cd into the trash it makes the ejection noise, but doesn't eject. It then pops back up on my computer. I tried reinstalling 10.6, but that didn't fix the problem. I'm have a feeling it might be more than just 10.6's fault. Any suggestions?