I was using this code for a long time in my document. I have a PDF with 10 pages, and this would randomly display one of those pages: \ctxlua{math.randomseed( os.time() )} \getrandomnumber \n {1} {10} \placefigure[force, none]{}{\framed[frame=off]{\externalfigure[comic.pdf][page=\n, width=\textwidth]}} For reasons I cannot understand, after an update of ConTeXt, the code no longer works, though trying to reduce it to a minimum working example it works, so I cannot figure out what is wrong in my code. Undefined control sequence <argument> ...domseed( os.time() )} \par \getrandomnumber \n {1} {10} \par \placefigure... \doifsomething #1->\edef \m_syst_string_one {#1 }\ifx \m_syst_string_one \emp... \event ... {#6}{{\bf #6}} \par \doifsomething {#7} {#7 } \par \doifsomething ... Is there another solution for generating a random whole number between 1 and 10? --Joel