Mplayer Error : 'Illegal Instruction'

Hi,

I am running MPlayer at Beagle Board & get following error :
mplayer wall-e-tlr2_60s.avi
mplayer: /usr/lib/libpng12.so.0: no version information available
(required by mplayer)
MPlayer dev-SVN-r28346-4.3.3 (C) 2000-2009 MPlayer Team
CPU: ARM

Playing wall-e-tlr2_60s.avi.
AVI file format detected.
[aviheader] Video stream found, -vid 0
[aviheader] Audio stream found, -aid 1
VIDEO: [XVID] 588x442 16bpp 23.976 fps 797.5 kbps (97.3 kbyte/s)
vo: couldn't open the X11 display ()!
vo: couldn't open the X11 display ()!
VO XOverlay need a subdriver
vo: couldn't open the X11 display ()!
[VO_SDL] Using driver: fbcon.
vo: couldn't open the X11 display ()!