Maybe Texinfo/TeX is simply not able to render the Icelandic character
thorn (þ) and eth (ð)
I added @DH @dh{} @TH{} @th{} to texinfo.tex (it uses the glyphs from
the EC fonts, as usual); please try the current
ftp://tug.org/tex/texinfo.tex and let me know if problems.
Thanks,
Karl
