Dear all, Here are two questions. 1. about ctxtools Recently, I updated TeXLive 2008 using "tlmgr". After that I try to update ConTeXt using "ctxtools --update". It downloaded cont-tmp.zip and extracting it. After mktexlsr, there was the first error but it proceeded without stop. ..... mktexlsr: Updating /usr/local/texlive/2008/texmf-var/ls-R... mktexlsr: Done. LuaTools | error unable to identify cnf file LuaTools | error unable to identify cnf file LuaTools | no cnf files found (TEXMFCNF may not be set/known) LuaTools | to be replaced old script /usr/texbin/luatools LuaTools | unable to locate new script LuaTools | LuaTools | runtime: 0.003 seconds MtxRun | error unable to identify cnf file MtxRun | error unable to identify cnf file MtxRun | no cnf files found (TEXMFCNF may not be set/known) MtxRun | to be replaced old script /usr/texbin/mtxrun MtxRun | unable to locate new script LuaTools | error unable to identify cnf file LuaTools | error unable to identify cnf file LuaTools | no cnf files found (TEXMFCNF may not be set/known) LuaTools | LuaTools | runtime: 0.002 seconds TeXExec | using search method 'kpsewhich' TeXExec | using existing database TeXExec | using tex engine pdftex TeXExec | using tex format path /Users/dalyoung/Library/texmf/web2c/ pdftex TeXExec | generating tex format cont-en This is pdfTeXk, Version 3.1415926-1.40.9 (Web2C 7.5.7) (INITEX) %&-line parsing enabled. (/usr/local/texlive/2008/texmf/web2c/natural.tcx) entering extended mode (/usr/local/texlive/2008/../texmf-local/tex/context/base/cont-en.tex ..... I got a following error and I couldn't continue. ..... (/usr/local/texlive/2008/../texmf-local/tex/context/base/core-fil.tex loading : Context Core Macros / File Support ) (/usr/local/texlive/2008/../texmf-local/tex/context/base/core-con.tex loading : Context Core Macros / Conversion Macros ! Undefined control sequence. <argument> \??cv :\c!n :\v!one \setvalue #1->\expandafter \def \csname #1 \endcsname l.618 \setvalue{\??cv:\c!n:\v!one } {1} ? Is it OK to use ctxtools for updating? What is the best way to update ConTeXt in TL2008? 2. about line break for sentences in Korean. When I compile Korean text using XeTeX + ConTeXt or LuaTeX, there are many overfull errors because of the linebreaking. But by adding the command "\XeTeXlinebreaklocale[ko]" the overfull errors were cleared in XeTeX+ ConTeXt. Is there a similar command in LuaTeX to handle the overfull errors? If not, is it possible to add such a command? Thank you for reading. best regards, Dalyoung