I have a HP Pavilion Elite m9180f and I've had issues with my system not shutting down properly after upgrading (or even installing a fresh copy of 10.5.6) and I can't figure it out for the life of me.

It happens whenever I install ANYTHING (kext-based), such as the Firewire patch (which consists of an updated disabler.kext), or my audio driver (888s), or the sleepfix, or the nvinstaller efistudio thingy.

I'd love to figure out how to get it running properly if anyone knows!