Videos not playing with mplayer & player-plugin

[Endymion]

R L wrote:

>I have MPlayer 1.0pre6-3.4.2 and mplayerplug-in-2.80-13.1.  When I
>play videos on Firefox, I get no video and when I play it manually
>through mplayer command line, I get:
>
>The selected video_out device is incompatible with this codec.
>
>FATAL: Could not initialize video filters (-vf) or video output (-vo).
>
>I mainly want to play videos in firefox. What's up?
>
>  
>

Go into the configuration menu and change the video driver under the 
Video tab.  Xv works fine for me.  Hope this helps ya,
-Endy