I updated to the latest ConTeXt but now get the following error message when I process my files (using TeXShop as the front end, and TeXLive 2007): ConTeXt ver: 2008.08.04 10:10 MKII fmt: 2008.8.9 int: english/english language : language en is active system : cont-new loaded (/usr/local/texlive/2007/texmf-dist/tex/context/base/cont-new.tex FatalError : Your format does not match the base files! FormatVersion : 2008.08.04 10:10 MKII FilesVersion : 2008.08.09 18:12 The updating process included sudo texhash sudo texexec --make --all so I am puzzled about why the problem occurs. Note: texmfstart ctxtools --contextversion returns CtxTools | context version: 2008.08.09 18:12 (/usr/local/texlive/2007/ texmf-dist/tex/context/base/context.tex) CtxTools | context version: 2008.08.09 18:12 (/usr/local/texlive/2007/ texmf-dist/tex/context/base/cont-new.tex) Reinstalling ConTeXt ver: 2008.08.04 obviates the problem. Alan