I recently upgraded to 0.91.2, and export of mathtext to eps files seems broken (at least with the default matplotlibrc file).
Figure looks great on the screen (interactive mode).
Exporting to png still works fine.
But writing to eps file, the greek symbols (I tried \theta and \lambda) don’t show up at all, while the latin symbols (a,b,c,etc) look very ugly (different font than used to). Any suggestions?