Hi,
I've noticed that on the page
http://gretl.sourceforge.net/cgi-bin/gretldata.cgi?opt=SHOW_FUNCS it
yields an error to click on the "[doc]" link of some zip packages,
namely missing stylesheets.
It could be that this affects those zip-format packages which do not
include a pdf help, for example GHegy or PairPlot, and possibly some others.
thanks
sven