mplayer problems

[jason]

I have not been able to play certain avi or wmv files after rebuilding 
mplayer on current.  I have had no problem using it on current while I 
had the old version, but once I did a portupgrade recently I have not 
been able to watch these files.  The error I get also depends on the 
file, some play audio only with this "Cannot find codec matching 
selected -vo and video format 0x33564D57."  Some give me a signal 11.  
Some times the same file will go between errors too! or I can mess with 
stop, pause, etc and cause a signal 11 on these files.  Anyone else have 
this happen?  I have rebuilt many times with clean and distcleans 
between them.  I even did a reinstall of the win32 codecs too.  I also 
have done a second system update since this started as of the 26 or 29 
of last month and this still happens.
Think this might be a cause?

# /etc/libmap.conf
     #
     # candidate             mapping
     #
     libpthread.so.1         libpthread.so.1 # Everything uses 'libpthread'
     libpthread.so           libpthread.so

     libc_r.so.5             libpthread.so.1 # Everything that uses 'libc_r'
     libc_r.so               libpthread.so   # now uses 'libpthread'