Hello, I've got a "Missing number error, treated as zero". I've whittled the problem code down to this minimal example: \definecolumnset [abbcolumn] [n=2,distance=5mm,balancing=yes] \setupcolumnsetlines[abbcolumn][1][1][60] \setupcolumnsetlines[abbcolumn][1][2][60] \starttext \startcolumnset[abbcolumn] foo \stopcolumnset \stoptext By contrast, if I remove the \setupcolumnsetlines commands, the error goes away. (But I think I need those commands, in case the text has more than 60 lines.) Also, if I run the example shown on this page http://wiki.contextgarden.net/Command/setupcolumnsetlines which seems very similar to mine, it works fine; no errors. Based on the latter working example, I tried adding the following to my minimal example that fails: \switchtobodyfont[small] or \setupcolumnsetstart[abbcolumn][1][1][1] \setupcolumnsetstart[abbcolumn][1][2][1] but neither one solved the problem. Here is more of the error output I received when running TeX on the minimal example shown at the start of this email: ! Missing number, treated as zero. system > tex > error on line 8 in file minimalex-133.tex: Missing number, treated as zero ... 1 \definecolumnset [abbcolumn] [n=2,distance=5mm,balancing=yes] 2 3 \setupcolumnsetlines[abbcolumn][1][1][60] 4 \setupcolumnsetlines[abbcolumn][1][2][60] 5 6 \starttext 7 \startcolumnset[abbcolumn] 8 >> foo 9 \stopcolumnset 10 \stoptext 11 <to be read again> \otr:1:43 \OTRSETdoifcellelse ...er #1:\number #2\endcsname \@EA \secondoftwoarguments... \@@ar@@1 ...ellelse {\mofcolumns }\columnlastcell {\global \advance \columnl... \redoloop ->\expandrecursecontent \endofloop <to be read again> { <inserted text> 44 ... l.8 f oo ? Here is some of the earlier output, include the version info:

context --mode=windows,report,border --nomapfiles --verbose minimalex-133.tex

resolvers | resolving | creating instance resolvers | resolving | variable 'SELFAUTOLOC' set to 'c:/texlive/2012/bin/win32' ... resolvers | resolving | resolvers | resolving | unknown configuration file 'C:/Users/huttarl/texmf/web2c/texmfcnf.lua' resolvers | resolving | unknown configuration file 'c:/texlive/2012/bin/win32/texmfcnf.lua' ... This is LuaTeX, Version beta-0.70.2-2012080612 (TeX Live 2012/W32TeX) \write18 enabled. (minimalex-133.tex ConTeXt ver: 2012.05.30 11:26 MKIV fmt: 2013.3.11 int: english/english Thanks for any help! Lars