First of all, a good day to all MR members. Been lurking around but have this question I got to ask. Recently about a month ago, I bought the latest i7 15" mbp cto with the hi-res screen and 7200rpm hdd option. All was fine but there were some niggles with it. On occasions, while using the mbp or waking from sleep, I'll encounter this grey overlay screen where it asks you to hold down the power button for 10s to shut it off. I suppose this is some panic attack? For the record, before those moments, nothing intensive was running. Does anyone encounter this problem or have a fix to it? I've never seen this on my (abused) 12" PB running 10.3.9; it is THAT stable.