Hey that was my laptop from 2 years ago. I never sorted it, but apparently there is a fix! Somebody pm'ed me with the details. I gave up on OSX, as windows was working fine. I have just started to try to get 10.5.2 up and running. I was getting the ACPI_SMC kernel panic from the install dvd. I patched the iso with a ppf off of the demonoid. With -x, the dvd booted then installed. Now the install hangs on ACPI_SMC when booting. I have never got it to boot. I downloaded the IOplatformPlugin.zip from the start of this thread, but I do not know how to get this in my install, and would it solve the booting problem?