Jean-Marc Lasgouttes wrote: > If we are confident that clsguide is right, we can redefine these two > macros and input the files. But this is risky IMO.
Yes, risky and beyond my LaTeX confidence. For the time being, I switched back to the mapping=tex-text option that is also understood by older fontspec versions for XeTeX and use Ligatures=TeX only for LuaTeX. Ironically, with most recent fontspec versions, LuaTeX also understands mapping=tex-text, but that won't help TeXLive 2010 users ... Jürgen
