Hallo!
/usr/local/pd/lib/pd/extra/Gem.pd_linux: libmpeg.so.1: cannot open shared object file: No such file or directory Gem: can't load library
[...]
what`s the problem?
it seems that you don't have libmpeg ...
how did you install pd and all the externals ? because if you are on ubuntu you can also use the gem debian packages, where all the dependencies will be resolved automatically ...
LG Georg