I recently got a new Mac (10.7.3) with dual monitors and want to play media using VLC. When I try go fullscreen, however, the second monitor gets pushed away and is replaced with the background your login screen has (the greyish one). I remember having a similar problem with VLC on an old computer with the second screen turning black and solving it by checking a box in the preferences but this does nothing this time. I have no luck with Google as they all seem to refer to a black screen and hinting at that checkbox to fix it.
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