Hi there, I run a free service at http://letterly.com/ and I've recently seen the service break. It probably is due to some xetex update, so I hope you can help.
\documentclass[british,a4paper]{letter} \usepackage{fontspec} \defaultfontfeatures{Mapping=tex-text} \usepackage{xunicode} \setmainfont{Charis SIL} \usepackage{babel} \begin{document} \address{ 256 Edgware road\\ W2 1DS } \letter{ Barclays\\ Woking } \signature{Kai Hendry} \opening{George} Hello there \closing{Sincerely,} \end{document} It seems to choke on the first lines: $ xetex letter.tex This is XeTeX, Version 3.1415926-2.2-0.9995.2 (TeX Live 2009/Debian) restricted \write18 enabled. entering extended mode (./letter.tex ! Undefined control sequence. l.1 \documentclass [british,a4paper]{letter} ? -------------------------------------------------- Subscriptions, Archive, and List information, etc.: http://tug.org/mailman/listinfo/xetex