Why is Electricsheep on Debian not using the mplayer configuration for display settings?

I have set electricsheep for screensaver in Debian. I want to run it in full screen, at 25 fps, but it runs at 23 fps with a very strange resolution. Checking on ps it return this ps -efww|grep mpla user 2481 2479 28 21:58 ? 00:02:24 mplayer -really-quiet -cache 8192 -monitoraspect 1280:800 -fps 23 -vo vdpau -wid 0x1C0000A -nostop-xscreensaver - user 2483 2481 0 21:58 ? 00:00:01 mplayer -really-quiet -cache 8192 -monitoraspect 1280:800 -fps 23 -vo vdpau -wid 0x1C0000A -nostop-xscreensaver - This is the .electricsheep/preferences.xml file: This is my mplayer config # Write your default config options here! vo=vdpau menu=yes vf=screenshot fullscreen=yes softvol=yes softvol-max=300 msgcolor=yes aspect=16:9 tskeepbroken=true use-filename-title=yes Why, instead of running at fullscreen with 16:9 aspect as Slackware did, does it run with its own options? I have solved the framerate problem, but it still runs at a strange resolution of 1280:800.