Hi there, I've got a 2011 MBP 2ghz running 10.7.1. I installed Lion on release day and haven't had any problems until now. Now, it seems like my Macbook locks up completely on a daily basis. Absolutely NOTHING responds - the mouse won't move, keyboard doesn't respond, pressing the hotkey to adjust keyboard backlight does nothing etc. It doesn't seem to do it in any specific program. It does it most often in Chrome (as that is the program that I'm most often in), but yesterday it did it in iTunes as well. I've tried resetting my PRAM and SMC. I haven't made any recent major changes that would warrant such strange behaviour. Anyone have any idea what it could be? Is there any error logs that could point in the right direction? Thank you!