using TeX backend on windows version of matplotlib?

Oops. Too hair trigger on the send button. Deleting the

    > cache worked. But why? I saw the problem the first time I
    > ran his example. What exactly is being cached?

We run a md5 hash on the tex string itself and use that for the base
filename of the cache. The tex , dvi and png files are cached. I am
not sure why you needed to delete the cache on this one. If you can
replicate the problem, perhaps you can take a look at
and see what is going wrong. The module is fairly straigtforward.