Hi all, because \left(…\right) and \sqrt{…} is broken with OpenType math fonts I had to switch to the PX-fonts but there the colon is eaten if one uses the \centercolon commands. \setupbodyfont[palatino] % \setupbodyfont[euler] % OK % \setupbodyfont[cambria] % OK % \setupbodyfont[asana] % OK \starttext \startlines \formula {A \centercolon B} \formula {A \colonminus B} \formula {A \minuscolon B} \formula {A \colonequals B} \formula {A \equalscolon B} \formula {A \colonapprox B} \formula {A \approxcolon B} \formula {A \colonsim B} \formula {A \simcolon B} \formula {A \coloncolon B} \formula {A \coloncolonminus B} \formula {A \minuscoloncolon B} \formula {A \coloncolonequals B} \formula {A \equalscoloncolon B} \formula {A \coloncolonapprox B} \formula {A \approxcoloncolon B} \formula {A \colonsim B} \formula {A \simcoloncolon B} \stoplines \stoptext Greeting Andreas