Oh, alright, sorry, I thought that with the error messages given in my first post it might have been enough. I'm really sorry... I attach an example document with the minimum required. There seems to an incompatibility betwen the first part: \def\activateSomeCharacters{% \defineactivecharacter ! {\,\string!}% \defineactivecharacter ? {\,\string?}% \defineactivecharacter : {\,\string:}% \defineactivecharacter ; {\,\string;}} \activateSomeCharacters \appendtoks\activateSomeCharacters\to\everystarttext ... and my typescript definition. The problem I see here is that you guys may or may not have the font I used (Garamond Pro). Anyway, what I can say is that in a simple document with no typescript definition, activeSomeCharacters work. But as it is in my sample document, it does not. I will paste again the relevant part in the log: ! Missing \endcsname inserted. <to be read again> \kern \textormathspace ...fmmode \mskip #1#2\else \kern #1\hspaceamount \empty {#3... <argument> name\textormathspace +\thinmuskip 1 :Garamond Premier Pro \dodotruefontname ...\ifcsname \??ff \fontclass #1 \endcsname \@EA \redotruef... \dotruefontname ... \??ff \fontclass #1\endcsname *#2#3\fi \else \ifcsname \... \dotruefontname ... \??ff \fontclass #1\endcsname \else \@EA \redotruefontna... ... l.35 \setupbodyfont[bodytext,12pt,rm] ? Thanks for any help! Jeff