I'm all out of possibilities, as far as I can think.. I wound up with a Macbook Pro 2ghz Core Duo, and while I knowit's old as hell, I'd like to get it in proper working order, as I feel it still has a lot of life in it if I can get it to stop freezing. It freezes without rhyme or reason, there's no specific application, action, etc that the issue is confined to. It's anything at any time. I've tried replacing the hard drive, there's an issue with the dvd drive so I just cloned the startup drive, I've repaired permissions, used 3rd party programs to wipe caches, verify and repair the hdd, even wipe and restore system and application settings. I just put new ram in it as well. I'm considering purchasing a new superdrive or external optical drive just to be able to run the hardware test or try a fresh install, but I hoped to obtain some insight prior to spending more money than I already have put into it. I've really put a lot of time into this, and as much as I'd like to take the ultimate solution and just buy a new mbp, that's not an option at the moment. Any advice? I'd be eternally grateful. Thanks.