Hello, URLs with '#' or '_' in the URL worked fine with LuaTeX, Version snapshot-0.37.0-2009033116 and ConTeXt 2009.04.06 21:42 and still work with the newest beta LuaTeX, Version snapshot-0.39.0-2009041623 and ConTeXt 2009.04.21 16:11 when compiled with '--xtx'. When compiled with '--lua' I got this error: ! Illegal parameter number in definition of \dodogetargument. <to be read again> s <argument> ...ce.contextgarden.net/core-pos.tex##s etpositions \dodogetargument ...{\douseurl [{setposition}][{#1 }][{##1}]}\dogetargument [... l.13 ...textgarden.net/core-pos.tex#setpositions}] here is a minimal example. It doesn't work no matter if \setupinteraction is active or not \setupcolors [state=start] \setupinteraction [state=start,color=blue] \useURL [minimals] [{http://wiki.contextgarden.net/ConTeXt_Minimals}] [] [\ConTeXt\ Minimals] \useURL [setposition] [{http://source.contextgarden.net/core-pos.tex#setpositions}] [] [\tex{setposition}] \useURL [setuppositioning] [http://texshow.contextgarden.net] [{cmd/en/setuppositioning}] [\tex{setuppositioning}] \starttext Lookup the source code of \from[setposition]! Or read about the syntax of \from[setuppositioning]. More Information about \CONTEXT\ Minimals at: \from[minimals] \stoptext Regards, Drazen