Hi all I'm new to this list (but an active SciPy user). I

    > just installed the latest matplotlib 0.80 on WinXP, Python
    > 2.3.4, Numeric 23.8. A while ago I used matplotlib 0.61
    > together with Numeric 23.1 which worked pretty well. But
    > now I get the following error:

Do you get the error when you simply import gzip w/o importing
matplotlib or zlib? If so, you've got a problem unrelated to
matplotlib. If not, then the error may have something to do with the
fact that we're statically linking in zlib.

You can safely comment this import out of pylab. It is only used for
transparently loading and saving zipped files. But please let me know
about the results of the gzip import test....