[NTG-context] underbar and \color

Hi, I need an underbar of the length it takes to print, say, 25'000 and used to do this (see minimal example). I now get no (or a white?) underbar. \starttext \underbar{\color[white]{25'000}} %no (white?) underbar \underbar{25'000} %underbar works \stoptext Context version 2010.05.08 13:33 Mark IV Thanks, Jörg