When I video-call, I get black screen if I try to see my contact in the
full-screen view. It works okay if the size is set to small or medium but
never in the full-screen view. I have to believe it has to do with the
messenger because it is neither my webcam nor my contact's that's giving me
the problem. Besides, the full screen view was working fine before I
reinstalled the messenger a few weeks ago, so I guess it's not the
graphics/monitor related either. Could anyone help me on this one?