Hi, typefaces with a missing font for math produce an error when it’s applied after \starttext which is common when the project structure is used where environment files are loaded after \startproduct or \startcomponent.
Minimal example: \starttext \definetypeface[test][rm][serif][pagella] [default] %\definetypeface[test][mm][math] [palatino][default] \setupbodyfont[test] \input knuth \stoptext Wolfgang ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________