Help! I've got a icebook (500mHz) that was cruising along just fine. I downloaded 10.2.8 thru software update, figuring that if they re-released it, I shouldn't have any problems, right? Well, it installed, and I haven't been able to start the computer since. At first, I got nothing but a blue screen. Brought the book home, tried re-installing 10.1, it crashed near the end of the system optomizing. I then remembered that I had my Jaguar disks at home; now it can't find the disk. (Disk utility in the installer says that the hard drive is unmounted - when I click on Mount, nothing happens.) Any thoughts and/or help would be greatly appreciated. Thanks.