pyinstall and matplotlib

[John Henry]

Has anybody been able to create an exe of their python applications
involving matplotlib using pyinstall (ver 1.3)?  I am getting a:

     RuntimeError: Could not find the matplotlib data files

when I attempt to run the exe created.

In searching the web, it appears this is an issue when others tried to
use py2exe as well.  Unfortunately, the few hits I saw doesn't include
enough details to inspire me as to what I should be doing in my
pyinstall .spec file.

Does anybody has an example or information about this?

Thanks,