>>>>> "Wolfgang" == Wolfgang  <[EMAIL PROTECTED]> writes:

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

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

    Wolfgang> ...  RuntimeError: dvipng was not able to process the
    Wolfgang> flowing file:
    Wolfgang> 
C:\temp\temp\.matplotlib\tex.cache\a7b7bb1f22dc4f78602fb90e430bed74.dvi
    Wolfgang> Here is the full report generated by dvipng:

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

I don't understand why the 200 is being quoted in the -D flag, etc 

  -D "200"

The relavent bit of code in matplotlib.texmanager reads

            command = self.get_shell_cmd('cd "%s"' % self.texcache, 
                        'dvipng -bg Transparent -D %s -T tight -o \
                        "%s" "%s" > "%s"'%(dpi, os.path.split(pngfile)[-1], 
                        os.path.split(dvifile)[-1], outfile))

WOlfgang, try  playing around with this code in
site-packages/matplotlib/texmanager.py (in the make_png function).
Does this help

            command = self.get_shell_cmd('cd "%s"' % self.texcache, 
                        'dvipng -bg Transparent -D %d -T tight -o \
                        "%s" "%s" > "%s"'%(int(dpi), 
os.path.split(pngfile)[-1], 
                        os.path.split(dvifile)[-1], outfile))

JDH

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