when i play the discovery video i get no yuv

MPlayer 1.0rc1-maemo.5 (C) 2000-2006 MPlayer Team
CPU: ARM
Menu inited: /etc/mplayer/menu.conf

Playing /home/user/MyDocs/.videos/Discovery.avi.
AVI file format detected.
VIDEO: [DIVX] 352x208 24bpp 15.000 fps 389.5 kbps (47.5 kbyte/s)
Clip info:
Software: MEncoder dev-CVS-050626-17:02-3.4.2
================================================== ========================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
================================================== ========================
================================================== ========================
Trying to force audio codec driver family dspmp3...
Opening audio decoder: [dspmp3] MP3 audio pass-through for Nokia 770 (fake decoder)
AUDIO: 44100 Hz, 2 ch, ??, 64.0 kbit/4.54% (ratio: 8000->176400)
Selected audio codec: [dspmp3] afm: dspmp3 (MP3 audio pass-through for Nokia 770)
================================================== ========================
AO: [null] 44100Hz 2ch ?? (1 bytes per sample)
Starting playback...
VDec: vo config request - 352 x 208 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.69:1 - prescaling to correct movie aspect.
VO: [nokia770] 352x208 => 352x208 Planar YV12 [fs]

Exiting... (Quit)

what might be the reason? with my old os2006 2.0 i thnk yuv worked. performance was quite good