plugger, mplayer and full screen mode

[Kevin Smith]

I have plugger-5.1.2  (in mozilla) working with mplayer-0.99.5_2  on 
5.3-Release - all software is compiled from the ports.. 

For the most part is seems to working beautifully, however, for the live 
of me, I can't seem to get the fullscreen mode "f" working when mplayer 
is called to play a movie stream in a window inside the browser. 

I recall this working with mplayer-plugin before.

Can anyone help ?

Thanks,
Kevin