[R-sig-Debian] [OT] LaTeX peculiarities in Ubuntu 9.10 beta

[Douglas Bates]

I am running the beta test version of Ubuntu 9.10, x86_64 on a machine
and encountered some peculiarities in LaTeX called through

R-devel CMD texi2pdf file.tex

The tilde character in the input, which should produce a non-breaking
space, is now being rendered as a tilde.  Does anyone know where I
could begin exploring for explanations and/or workarounds?