Hi Hans, There is a missing carriage return in the definition of \startformulas in the latest beta. In \def\startformulas#1\stopformulas \long\def\startformula##1\stopformula {\advance\scratchcounter\plusone}% \scratchcounter\zerocount #1% preroll should be \long\def\startformula##1\stopformula {\advance\scratchcounter\plusone}% <--- Missing \cr here \scratchcounter\zerocount #1% preroll This causes a number to missed in \starttext \placeformula \startformulas \startformula \startalign \NC a_1 x + b_1 y \NC = c_1 \NR[+] \NC a_2 x + b_2 y \NC = c_2 \NR \stopalign \stopformula \startformula \startalign \NC d_1 u + e_1 v \NC = f_1 \NR \NC d_2 u + e_2 v \NC = f_2 \NR[+] %<-- does not show up % %in present beta \stopalign \stopformula \stopformulas \stoptext Aditya