In desperation I finally tried mtxrun --script fonts --reload --force (May The Force be with you, for the scifi fans) That helped. It looks like the font database got corrupted, but I cannot guess why. Because I do not know whatI did to create the havoc, I cannot recreate the problem (nor do I want to, I may add). Hans van der Meer On 1 May 2013, at 10:25 PM, Wolfgang Schuster mailto:schuster.wolfgang@gmail.com> wrote: Am 01.05.2013 um 20:08 schrieb "Meer, H. van der" mailto:H.vanderMeer@uva.nl>:

From one moment to the next typesetting in Cambria suddenly gets sour: ! Math error: parameter \Umathquad\displaystyle is not set.

Doing mtxrun --script fonts --reload did not help. Any idea what can have cause the trouble? The fact that I have used \showfont a few times, perhaps? I have no problems with Cambria. I am completely in the dark. Do you have a minimal example which demonstrates the problem. Wolfgang ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nlmailto: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 ___________________________________________________________________________________