[MPlayer-users] Any way to specify xinerama options with gmplayer

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Hi all,
In order for mplayer to work on my dual screen system, it must have the
xineramascreen option set to "0"
This works for mplayer, but if I launch gmplayer, it fails to load the video
driver, because it tries to use screen 1.
I looked in gui.conf, but there is no option. Is there any way to specify
xinerama options with gmplayer?
 
Similarly, in mplayer, I set 
 
    fs=true
    fstype=fullscreen
    nojoystick=true
    xineramascreen=0
 
tv=driver=v4l2:chanlist=us-cable:alsa=yes:amode=1:immediatemode=0:volume=100
:norm=ntsc

But these options are not in "gui.conf" 
 
What can I do?
 
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