Hi Vivian, Fran, Vivian, thanks to ask but I'm in a periode of lack of inspiration, I use this time to study a lot of fractal related stuff but I produce nothing interesting... Fran, this software is in java go to the second link download the software and be sure to have a recent java machine install on your computer: http://java.sun.com/j2se/downloads.html Cheers, Luc