Last week, the 20gb hd in my iBook 600 died. I ordered a 40gb Fujitsu and installed that, thinking I could just boot from cd, format, and install the os. The iBook wouldn't start up from the OS X cd, it would hang at the Apple logo which would turn into a circle with a slash. So then I tried using OS 9 and that booted fine. However, I could not get Drive Setup to see the drive but System Profiler showed a HD was connected. I installed OS X and 9 to an external drive but the boot process stops at the grey screen with the Apple logo. Any ideas? Thanks. PS. The hardware diagnostic CD gives a script error.