When I play in the full-screen mode, I tend to alt-tab out since I like the chat with my friends that are on FB. When I alt-tab from full-screen, the entire display on my laptop becomes the same size as the full-screen view of Luna. (at 1024 x 768), leaving the edges of my computer screen black. Even when I try to print screen it, it just shows the 'square,' not even acknowledging the edges.
Does this happen to anyone else? Its a weird thing to happen, since I usually alt tab out of full-screen games/applications with no issue.