MacBook Pro stuck in sleep mode: can't restart or shut down, black screen
I closed the lid of my laptop for the night, as I do routinely every night, thus putting my MBP to sleep. I leave the various apps open, usually Firefox, iTunes and Entourage. The next morning my MBP felt hot and the screen remained black... it would not change. After repeatedly trying and failing to clear the black screen and bring my apps up, I held the power button down to do a complete Shut Down. My system turned off, but did not do an actual Shut Down. When I press the power button to turn it on, it comes right back into sleep mode with the screen remaining black. I cannot seem to force either a Shut Down or a Restart. I unplugged all peripherals and the power cord, let my MBP cool down completely--for a couple of hours-- and tried everything again. Still no change: I'm stuck in sleep mode with a black screen. I've also tried resetting the PRAM and the SMC, but neither works, probably because I'm not coming from a Shut Down. Is anybody else having this problem? Anyone have any suggestions? I think the problem must be somehow related to the latest update, but whatever it is, I'd like to resolve it.
Thanks in advance for any help.
17" MacBook Pro Unibody, Mac OS X (10.6.2)