Hi all! When trying out XeTeX following http://wiki.contextgarden.net/XeTeX I got this (I have a full teTeX installation + ConTeXt, etc. with i-installer on a Mac OS X 10.3.9 is from yesterday.): -- Command with output -- UMac:~/Projekte/ConTeXt/ uma$ texexec --xtx main.tex TeXExec 5.4.3 - ConTeXt / PRAGMA ADE 1997-2005 fixing engine variable : xetex executable : xetex format : cont-en inputfile : main output : xetex interface : en current mode : none TeX run : 1 This is XeTeX, Version 3.141592-2.2-0.99b (Web2C 7.5.3) (WARNING: translate-file "natural.tcx" ignored) ---! /usr/local/teTeX/share/texmf.local/web2c/cont-en.fmt was written by pdfetex (Fatal format file error; I'm stymied) return code : 256 run time : 1 seconds total run time : 4 seconds warning : use 'texmfstart texexec' instead -- Running XeTeX on the input file in TeXShop yields: -- This is XeTeX, Version 3.141592-2.2-0.99b (Web2C 7.5.3) kpathsea: Running mktexfmt xetex.fmt fmtutil: no info for format `xetex'. I can't find the format file `xetex.fmt'! -- The input file was: -- \enableregime[utf] \mainlanguage[en] \starttext \title{The Main Title} Bla, {\bf bla}, blah!\footnote[fn01]{\language[de] Beispielfußnote} And some formula: $$ \int^\infty_0 e^{-x^2} dx.$$ \stoptext -- End -- Hope somebody has any idea on this. Bye and thanks to all for help! -- Ulf Martin