Hello everyone been lurking in the interweb shadows here finally having a question which I hope ya'll might be able to shed light on. Just purchased a Thunderbolt 27" Cinema Display working well and dandy, macbook pro went to sleep once today and came back into my office and spacebar tada no problem up and running. Came back from a meeting to wake it up and boom didn't come back up , only showed the cursor. So I opened up my MB and unplugged the thunderbolt then back in and its working fine....is this a glitch or a known issue? hope someone can assist, thanks!