ok I downloaded Pd-vanilla 0.42-6 from puredata.info and ran the patch. It took about 10 mins, but eventually there were a couple of buzzes. No libs or other externals, just pd-vanilla 0.42-6 with readanysf~ running your stress patch.
James,
Can you download and try this:
http://aug.ment.org/software/readanysf~testing.tar.gz
does that help any?
-august.