Dear devs, When I try to use \startalignment[outer], it fails when one of the following is true: * the command is invoked on an odd-numbered page, or * \setuppagenumbering[alternative=doublesided] was not called first. Regarding the second point, the bug is that I believe \setuplayout[location=doublesided] also ought to work, but doesn't. I get the same "! undefined control sequence" error message in all cases; the error message and a minimal *working* example are reproduced below, with comments showing how to break the working example. Cheers, Sietse --------------begin error text-------------- <argument> \c_spac_align_state_horizontal_left \firstoftwoarguments #1#2->#1 \spac_align_flush_horizontal ..._horizontal_right \or \ifcase \c_spac_align_... \spac_align_add_to_cache ...lign_flush_horizontal \spac_align_flush_vertical... \spac_align_setup ...\spac_align_add_to_cache {#1} --------------end error text-------------- --------------self-contained example that does not fail-------------------- \setuppapersize[A9] % not required % FAILURE POINT #1 % remove the following line to induce failure \setuppagenumbering[alternative=doublesided] % This line ought to work instead of the setuppagenumbering line, % but it doesn't. %\setuplayout[location=doublesided] \showframe % not required \starttext % FAILURE POINT #2 % To induce failure by pushing startalignment onto an odd page, % remove the next line or, alternatively, duplicate it. Page 1 \page[yes] \startalignment[outer] % must be on even page! Page 2 \page[yes] Page 3 \stopalignment \stoptext --------------------end example that does not fail------------------------ -- Sietse Brouwer -- sbbrouwer@gmail.com -- +31 6 13.456.848 Verlengde Wassenaarseweg 4a -- 2342 BG Oegstgeest -- the Netherlands MSN: sietse@gawab.com -- ICQ: 341232104