I have a newer 13" Macbook that needed many updates with installed applications. So I downloaded them and then the install screen was loaded and was installing the apps. Well the installer script didn't move for about 4-5 minutes, so I just shut down the computer manually. When I restarted, I got a Kernel panic that told me to restart the computer. But when I do, it just goes back to the same screen! I put in Leopard OS disc in there hoping it would just reinstall the OS, but it still goes to the panic screen. And I don't think it's letting me eject the disc right now. What am I supposed to do? I would greatly appreciate any help or advice you guys can offer--really! Thanks.