Errors with mplayer may be related to this: the new mplayer ((build date: 10/15/11) and smplayer (build date: 11/11/10)) doesn't work together with libx264.so.119
Another possible error message:
/usr/bin/mplayer: error while loading shared libraries: libx264.so.118: cannot open shared object file: No such file or directory
I had this problem too. Solved it by extracting libx264.so.118 from
the previous version of x264 ( x264-20111001-1-x86_64.pkg.tar.xz) in var/cache/pacman/pkg and copying it to /usr/lib/.
Getting your questions answered here at ArchBang Forums
Please! Always give hardware info, if there is a chance that 's relevant: #lspci -vnn
Quote: What I have learnt from Linux is to minimize dependencies and functionalities for greater independence.
On Arch(bang) and Openbox: http://stillstup.blogspot.com/