[NTG-context] Nath bugs?

I've been trying to make some notes on typesetting math in ConTeXt, and using nath seems the way to go. An odd thing about using \binom with nath: in displayed equations, it works fine, in inline equations, \binom{1}{2} will typeset "1(2)" (with a raised "2"). I suppose it's known that \startalign won't work with nath if given an argument like [n=3]. Overall, though, this is very nice. Jay