Hey guys, Sorry if this question has been asked before. I have a Retina 15" and a new Thunderbolt Display. I want to know how to get it to work so that when I close the lid on my retina I can continue to use the monitor with a keyboard and mouse? I have power plugged in, the thunderbolt cable, a USB hard wired mouse, and a Bluetooth Apple keyboard. I'm also running Mountain Lion 10.8.2 I tired closing the lid and waking the laptop with the keyboard and mouse but it didn't work. What am I doing wrong?