I have motion installed and am using ffmpeg to output .avi videos but when I try to play them in Mplayer all I get is a green screen. The output from Mplayer is listed. I am sure the avi is completed before I try them.
Any help would be appreciated.

ken@ken-desktop:~$ sudo mplayer /tmp/motion/east/01-20081218151934.avi
MPlayer 1.0rc2-4.2.3 (C) 2000-2007 MPlayer Team
CPU: AMD Athlon(tm) 64 Processor 3000+ (Family: 15, Model: 79, Stepping: 2)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing /tmp/motion/east/01-20081218151934.avi.
AVI file format detected.
[aviheader] Video stream found, -vid 0
AVI: No audio stream found -> no sound.
VIDEO:  [FMP4]  640x480  24bpp  13.000 fps  5247.5 kbps (640.6 kbyte/s)
Clip info:
 Software: Lavf1d.51.10.0
xscreensaver_disable: Could not find XScreenSaver window.
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
Audio: no sound
Starting playback...
VDec: vo config request - 640 x 480 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
VO: [xv] 640x480 => 640x480 Planar YV12
V:   0.2   3/  3 ??% ??% ??,?% 0 0

Exiting... (End of file)