Dear Otared, I run your code and got the output which is as same as in your file align-mkii.pdf I don't know why you got align-mkiv.pdf. In my log file, ConTeXt ver: 2011.10.08 11:42 MKIV fmt: 2011.10.12 int: english/english ... mkiv lua stats > luatex banner - this is luatex, version beta-0.70.1-2011051908 (rev 4277) Something in your system is different from mine. I am sorry that I couldn't give you a solution. Best regards, Dalyoung
Best regards: OK PS: Here is the source file: %%% align-mkiv.tex % defining an alignment structure \definemathmatrix[alignedcases] [align={right,left,left}, distance=3pt, left={\left\{\;}, right={\right.}, style=\displaystyle]
\starttext
\startformula \startalignedcases \NC -\partial_t \Delta \psi + \Delta^2 \psi - \Delta \psi \NC = 0 \NC \quad \mbox{in }\, (0,\infty)\times \Omega \NR \NC \psi (0,x) \NC= \psi_0(x) \NC \quad \mbox{in }\, \Omega \NR \NC \psi (t,\sigma ) \NC= 0 \NC \quad \mbox{on }\, (0,\infty)\times \partial\Omega \NR \NC {\partial \psi \over \partial {\bf n}}(t,\sigma ) \NC = 0 \NC \quad \mbox{on }\, (0,\infty)\times \partial\Omega. \stopalignedcases \stopformula
\stoptext %%% end align-mkiv.tex