Hello Hans, I've updated original TeXLive2007 distribution to the latest cont-tmf beta, by copying \web2c into TeXLive2007\texmf folder and every other stuff into TeXLive2007\texmf-dist folder. Then I rebuilded the format files for both context and xetex (texexec --make en, then texexec --xtx --make en). Now xetex doesn't see the font that it previously did. The setting \definetypeface[myface][rm][Xserif][Adobe Caslon Pro] now gives This is XeTeXk, Version 3.141592-2.2-0.996 (Web2C 7.5.6) (format=cont-en 2007.6.18) 18 JUN 2007 20:20 entering extended mode \write18 enabled. %&-line parsing enabled. (WARNING: translate-file "natural.tcx" ignored) **FMHelp.tex \emergencyend (./FMHelp.tex ConTeXt ver: 2007.06.06 09:53 MKII fmt: 2007.6.18 int: english/english ... ! Font \*myface212ptrmtfrm*:='"mapping=tex-text at 12.0pt"' not loadable: insta lled font not found. <to be read again> \relax \xxdododefinefont ...tspec {#4}\newfontidentifier \let \localrelativefontsiz... \fontstrategy ...me \fontclass #2#3#4#5\endcsname \tryingfontfalse \fi <inserted text> ...yle \fontalternative \fontsize \fi \iftryingfont \fontstr... \synchronizefont ...strategy \the \fontstrategies \relax \fi \iftryingfont \... <argument> \getvalue {\@style@ \fontstyle } \edef \fontstyle {\fontstyle }\if... ... Best, Vyatcheslav