I have the most recent stable pdfTeX and ConTeXt versions, but when I
ran he recently posted shading example, I got an error message during my
texexec run saying that metafun.mem could not be found, was using
mpost.mem instead.

I scanned dejanews and google, but no mention of metafun.mem

Any help welcome.

-- 
Tom Porter                                   txporter@mindspring.com
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"On two occasions I have been asked [by members of Parliament], 
'Pray, Mr. Babbage, if you put into the machine wrong figures, will 
the right answers come out?'  I am not able rightly to apprehend the 
kind of confusion of ideas that could provoke such a question."