Hi, Hans and Mojca: first, (to Mojca) the first-setup.sh script still deletes fontconfig cache when updating on windows. second, (to Hans) unicode-letters.tex is read when we dump plain TeX or LaTeX format in TeXLive. This file is wrote by Jonathan Kew in order to initialize XeTeX. It defines many important unicode properties into XeTeX. However, ConTeXt do not load that file when dumping the xetex format. The file is not even in ConTeXt distribution. I suggest that the file should be loaded. You can find the file in http://scripts.sil.org/svn-public/xetex/TRUNK/texmf/tex/generic/xetex/unicod... XeTeX's plain TeX ini file can be find in http://scripts.sil.org/svn-public/xetex/TRUNK/texmf/tex/xetex/config/xetex.i... If the file is not loaded, thousands of lines should be copied to third party modules (like the module I announce on the mailing list today) in order to support some language correctly. This method is quite messy, not to say inefficient for loading. Yue Wang