I suspect you are running jconsole. Can you run the windowed verion (jw on UNIX)? Alternatively, you can invoke jee (built for Emacs but should run from terminal too producing GUI screens) as described in documentation.
Yes, you are right, i did run jconsole. The plot works as expected with jw. Thank you very much Oleg! ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
