When mplayer is being used on Debian Lenny, if I resize the window or maximize
the player, then the video becomes suitably enlarged to match the frame,
allowing the videos to be played full screen, or at an appropriate size.
Using the same version of mplayer under Debian Squeeze, the video does not
resize, but instead the remaining frame area is painted black, leaving the
video at the original size, but surrounded by a black frame.
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