disabled safesleep - nicely speeds up sleeping and waking, but hasn't fixed the wake to black screen. I think I have narrowed the occurrence down to a specific instance - if anything causes the MBP to wake up while the lid is closed, (usually usb activity - though opening and re-closing the lid before it is fully awake does the same thing) then it seems to hang in the wake up process - it's not asleep (indicator light is out), but not fully awake (screen is black). If I move the mouse while the lid is closed, the indicator light goes out and the apple logo lights up - evidence of it waking up, so then I open the screen and for a fleeting second I see the login / password screen - just before black. If I don't open it right away, it appears to go back to sleep mode, so then I open the lid and still - black screen. Interestingly, it is a dark black screen - powered on but black - not the greenish tinted black you see when the power is off. F2 has no effect, and no amount of waiting or keypressing gets past it - have to hard re-boot. Basically, it seems that a closed MBP has to be woke up only by opening the lid - and it cannot be disturbed while doing so. If it is asleep with the lid already open, any normal waking action is fine. Kinda frustrating. APPLE? LISTENING? NEW UPDATE TO FIX THIS?? (especially since it seems their last update caused it!!

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(note - I am going to try disabling the password on wake - see if that has any effect - EDIT - no effect.)