Michal Kvasnicka
I can't find the reason of the bug. So I send a minimal test file. The problem is, that the frame has title "unkonwn", not "Example" as I expected. Many thanks for your help.
Sorry that this won't help you but: it works fine here. teTeX 2.0.2, newest ConTeXt beta. I remember having problems with textext too, but running texexec a second time did work for me. And, of course, make sure you have \protectbufferstrue set in a) your cont-sys.tex or b) in your testfile. I bet that this is the reason for the bug. Any suspicious lines in the logfile? This is what mine looks like. [...] (/opt/context/2003.3.17/texmf/tex/context/sample/tufte.tex) systems : randomizer starts with 889229655 TeXExec 3.2 - ConTeXt / PRAGMA ADE 1997-2003 metapost : test-mpgraph format : metafun This is MetaPost, Version 0.641 (Web2C 7.4.5) second MP run needed : 1 tex labels found metapost to tex : test-mpgraph executable : pdfetex format : cont-en inputfile : tmpgraph output : dvips interface : en options : once batch nomp current mode : none This is pdfeTeX, Version 3.14159-1.10b-2.1 (Web2C 7.4.5) \write18 enabled. entering extended mode run time : 1 seconds dvi to metapost : test-mpgraph metapost : test-mpgraph format : metafun This is MetaPost, Version 0.641 (Web2C 7.4.5) total run time : 3 seconds [MP to PDF] (./test-mpgraph.1)