From the beginner's manual, I created the following: \starttext \useexternalfigure [Photo][hass03g] [width=.4\textwidth] \useexternalfigure [Graphic][gracht] [width=.4\textwidth] \placefigure [here,force] [fig:canal] {The Hasselt Canals.} \startcombination[2*1] {\externalfigure[Photo]} {a bitmap picture} {\externalfigure[Graphic]} {a vector graphic} \stopcombinatie \stoptext I typed the input file exactly as in the manual. I am getting the following error: ! Missing { inserted. <to be read again> \let \noshowargumenterror ->\let \expectedarguments \noexpectedarguments \dodoubleempty #1->\noshowargumenterror \doifnextcharelse [{\dodoubletestemp... l.13 \startcombination [2*1] ?