Every 2nd or 3rd time I attempt to wake my MBP from sleep by opening the lid (or from sleep in the menu with lid open), the machine is either 1) Unresponsive (can hear fans - still running but no key response) and have to force reboot, or 2) It suddenly reboots on its own. Searching previous topics on this and other forums shows a relatively large number of folks with symptom #1, few with symptom #2, all with previous gen MBPs. In any case, I couldn't find an example of someone resolving it (other than sending to Apple). What I've tried: Reset SMC, Zap P-RAM, Repaired permissions, hardware test (OK), Disk Utility repair (OK), Tried 9400 & 9600, Disabled Safe Sleep, Removed some apps & startup items, etc. Has anyone had this problem? Found a resolution? Otherwise, it looks like I might be without my computer while it is in for repair... Thanks!