This discussion was continued privately (my mistake). A summary: Thanks for the file, Luigi -- getting closer. Two problems left: 1. I was using Calibre. Maybe I simply don't know how to use that programme. Whereas a free epub book downloaded from the net opens as it should, the files generated by myself and by you just show the unformatted text. With Firefox it works. 2. In Firefox: My version lacks the images; in fact, the figures showing up in the OPS directory after the mtxrun have zero KB. But it is ok for me to copy them there manually. Hraban: Thanks for the tip. Jörg ----------------------- yes here too. I've just installed calibre, I don't know it very well. Maybe is possible to check the book too, just to see if there are errors. -- luigi