Hi @ all, I've just installed TeXlive 2k8 on a Vista-Machine. I've updated the MK II to MK IV and tried to set a script with chemie-module. and the mainlanguage in german. The file has the following input: \hauptsprache [de] \verwendemodul [pictex, chemie] \starttext \subjekt{Chemie-test} \stellechemieein[breite=passend,oben=1500,unten=3500] \startchemie \chemie[ONE,Z0,DB1,SB3,SB7,Z7,MOV1,Z0,SB3,SB7,Z3,Z7,MOV0,SUB2,SIX,B,R6,C][C,H,C,H,H] \textunter{Styreen} \stopchemie \quad\quad\quad \startchemie \chemie[ONE,Z0,DB1,SB3,SB7,Z3,Z7,MOV1,Z0,SB1,SB3,Z3,MOV1,Z0,DB1,SB3,Z3,MOV1,Z0,SB3,SB3,SB7,Z3,Z7][C,H,H,C,H,C,H,C,H,H] \textunter{1,3-Butadieen} \stopchemie \stoptext then compiling it with texexec file.tex gives the following result: TeXExec | processing document 'file.tex' TeXExec | no ctx file found TeXExec | tex processing method: context TeXExec | TeX run 1 TeXExec | writing option file file.top TeXExec | using randomseed 377 TeXExec | tex engine: pdftex TeXExec | tex format: cont-de This is pdfTeXk, Version 3.1415926-1.40.9 (Web2C 7.5.7) %&-line parsing enabled. (c:/texlive/2008/texmf/web2c/natural.tcx) (Fatal format file error; I'm stymied) TeXExec | runtime: 1.055 when I try to compile this file with context it runs a holy time and then gives me the following result: language : language en is active report >> utilityfile: not present system : cont-new loaded (C:/texlive/2008/texmf-dist/tex/context/base/cont-new.tex systems : beware: some patches loaded from cont-new.tex (C:/texlive/2008/texmf-dist/tex/context/base/cont-new.mkiv lua : used config path - C:/texlive/2008/texmf/web2c/texmf.cnf lua : used cache path - C:/Users/cyberplaque/.texlive2008/texmf-var/luatex-cache/context/3236d28ff38909cc68507fe0979fbbf0 ) (C:/texlive/2008/texmf-dist/tex/context/base/cont-mtx.tex)) system : cont-old loaded (C:/texlive/2008/texmf-dist/tex/context/base/cont-old.tex loading : Context Old Macros ) system : cont-fil loaded (C:/texlive/2008/texmf-dist/tex/context/base/cont-fil.tex loading : Context File Synonyms ) system : cont-sys.rme loaded (C:/texlive/2008/texmf-dist/tex/context/user/cont-sys.rme (C:/texlive/2008/texmf-dist/tex/context/base/type-tmf.tex) (C:/texlive/2008/texmf-dist/tex/context/base/type-siz.tex) (C:/texlive/2008/texmf-dist/tex/context/base/type-otf.tex)) bodyfont : 12pt rm is loaded specials : tex loaded system : chemie-test.top loaded (./chemie-test.top specials : loading definition file tpd (C:/texlive/2008/texmf-dist/tex/context/base/spec-tpd.tex specials : loading definition file fdf (C:/texlive/2008/texmf-dist/tex/context/base/spec-fdf.tex (C:/texlive/2008/texmf-dist/tex/context/base/spec-fdf.mkiv)) specials : fdf loaded ) specials : fdf loaded ) ! Undefined control sequence. l.1 \hauptsprache [de] ? ! Emergency stop. l.1 \hauptsprache [de] ! ==> Fatal error occurred, no output PDF file produced! MtxRun | loading configuration for C:/texlive/2008/texmf/web2c from C:/Users/cyberplaque/.texlive2008/texmf-var/luatex-cache/context/3236d28ff38909cc68507fe0979fbbf0/trees/a9242cc4ac8b58f8a1b613c7103ba2f1 MtxRun | run 1: luatex --fmt="C:/Users/cyberplaque/.texlive2008/texmf-var/luatex-cache/context/3236d28ff38909cc68507fe0979fbbf0/formats/cont-en" --lua="C:/Users/cyberplaque/.texlive2008/texmf-var/luatex-cache/context/3236d28ff38909cc68507fe0979fbbf0/formats/cont-en.lua" "./file.tex" for any kind of help I would be thankful Greetings Martin