Comment 6 for bug 162049

I've just been able to reproduce this. Granted, it was on Beta 1, but the relevant lines in session.sh were there and mtd was _not_ started.

When I manually ran

     #If we have mtd around (and not running), good idea to start it too
       if ! `pgrep mtd>/dev/null`; then
           if [ -x /usr/bin/mtd ]; then
               /usr/bin/mtd -d
           fi
       fi

in a Terminal, it started (and stayed running).

What could cause this? Something missing in the environment, caused by the desktop environment not being running yet?