I think what may be causing this problem may be these packages
libavcodec52
libavformat52
libpostproc51
libavutil50
libvpx0
xine-vdpau works well with this package installed, mplayer only does give this problems with the packages mentioned above
I did these tests on ubuntu 10:04,
without these package versions that I mentioned above, mplayer works well with the original packages of 10.04
I think what may be causing this problem may be these packages
libavcodec52
libavformat52
libpostproc51
libavutil50
libvpx0
xine-vdpau works well with this package installed, mplayer only does give this problems with the packages mentioned above
I did these tests on ubuntu 10:04,
without these package versions that I mentioned above, mplayer works well with the original packages of 10.04