Dear Fabrice, The following code is working in my mac. I tried your first code and it is working after adding \setupinteraction[]. Since I didn’t use ‘rsteps’ module, I could’t test the second code.
My ConTeXt version is as following. ConTeXt ver: 2014.12.21 22:25 MKIV beta fmt: 2014.12.26 int: english/english \setupinteraction[state=start] \setupcolors[state=start] \usemodule[pre-60] \setuppapersize[S4][S4] \starttext \StartSteps \startformula \startalign \NC x^2 + y^2 \NC = z^2 \NR \FlushStep \NC x^2 + y^2 \NC = z^2 \NR \FlushStep \stopalign\stopformula \StopSteps \stoptext I hope that this helps. Best regards, Dalyoung
___________________________________________________________________________________ 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 ___________________________________________________________________________________