Ok here are the specs: intel 2.4 24" iMac 10.5 all up to date One day i just turned it on and got the folder with a question mark. Here is what I have done so far: Verified Disk Repaired Disk Zapped PRAM Any time i do any of these it seems fine and it will work after restarts and shut downs. However after shutting down for more than an hour or so it will come up with the stupid folder... Im getting really pissed and cant understand why this is happening. If anybody has any more tips to make this stop please let me know. I dont want to have to take this to the guys at the genius bar to have them do the same crap and tell me that its fixed and then i get home and it sucks again. PLEASE HELP ME.