Thanks for trying to help Here are some details - using =begin \ =end described in "Programming Ruby. Second Edition" - I used them after second statement of every class and module - I generated rdoc using the command rdoc sometimes with -S and/or -w4 All parameters produced the same result: The first # turns off generating. FF and IE browsers show the same. I use Windows with 1.8.4 -- Posted via http://www.ruby-forum.com/.