installation problem on Windows XP

Are you using matplotlib in your application? If this is the case,
that's the neverending issue of unicode/ansi wxPython builds on
matplotlib. Try to rename the following file:

Just to be clear here, the problem is that the matplotlib wxAgg "accelerator" is written in C++ and can only be compiled against one version of wxPython -- that binary won't run with any other version. This has proved to be a pain in the *&^@%&^, so the latest version (in SVN now) has used wxPython2.8 features to keep all the code in Python, so this shouldn't be a problem in the future.

renaming (or removing) that pyd file disables the accelerator, so that only pure python code is used. In theory, it will slow things down a bit, but I doubt you'll notice.

-Chris

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--
Christopher Barker, Ph.D.
Oceanographer

Emergency Response Division
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Chris.Barker@noaa.gov