Hello luigi, indeed the ConTeXt version 2011.05.18 18:04, with the LuaTeX version beta-0.70.1-201106141 is used in TeXLive2011. These versions give me fewer problems with TikZ than the version beta-0.70.1-2011052008 of LuaTeX, with the same ConTeXt version. For instance, frames are put over each other in the stable and the beta version of ConTeXt. But with the TeXLive2011 version, these frames are nice separated of each other and I have no problems with error messages about "catcode". With the stable and the beta version of ConTeXt the process stops with error messages about "catcode". And till now I have no problems with the colors. Is there somewhere a howto, which describes how to compile something from svn? I have never done such a thing, Kind Regards, Rene'