... problem using tex on axes label...

What does it means!?? I'm using matplotlib 0.83 on a linux

    > box with tetex-3.0 and ghostscript-8.51 installed...

What version of dvipng do you have installed? I recommend 1.6 or
later. We need to make the texmanager smarter about raising errors
when it doesn't find the software it needs.

JDH