I have a new MBP with 10.8.3 and all updates installed, and whenever I go from fullscreen to windowed view when using facetime, I get gray bars on the top and bottom of the video feed, the window is forced into portrait regardless of how you had it set before going fullscreen. I installed a recent OSX update that fixed the problem for a couple days, and now it's back. Wondering if anyone else has this issue? There is no way to fix it on my end, the only fix I have found is to have the other person rotate their view to portrait, then back to landscape. Pardon the silly faces.