latex output problem

Hi all,

I have absolutely no idea what the problem is. I'm running the actual enthought python version (on WinXP) which includes matplotlib version 0.87.3.

The conversion of the dvi file to png does not work:
dvipng -bg Transparent -D "200" -T tight -o "C:\temp\temp\.matplotlib\tex.cache\6ded4018a133b00dd5abd9e27ca15efa.png" "C:\temp\temp\.matplotlib\tex.cache\a7b7bb1f22dc4f78602fb90e430bed74.dvi"

RuntimeError: dvipng was not able to process the flowing file:
Here is the full report generated by dvipng:

This is dvipng 1.6 Copyright 2002-2005 Jan-Ake Larsson
dvipng: Fatal error, bad -D parameter

The path to the dvi file is correct. The strange thing is, that this commands works when I paste it into the windows command line!

I hope someone can help me.