I've been having my MacBook Pro freeze up on me after sleeping for around 20-30 minutes or longer. I open the lid, and it looks fine, then as soon as I try and do something I get the spinning beach ball of death. Then, I click something else, and it instantly gets the beach ball. Eventually I try the dock, which comes up, but then freezes and hangs as well, partially expanded. Control+Option+Delete does nothing. Nothing at all. Not a single button does anything, the only thing that is responsive at any level is the mouse (now a beach ball), and it only moves. And that's it. I have no peripherals hooked up, nor is my Safe Sleep mode activated (mode=0). Help? Please? Thanks.