I'm trying to use JHotDraw to create a diagram tool but it seems that I can't get JHotDraw to work!! When I try to start the JModeller that I use as an inspiration (!!) it starts OK, but when I try to add a new class figure, the program crashes with a NullPointerException, and a java.lang.classNotFoundException on the ClassFigure.java file!!!

I'm wondering if anyone else is, or have, experienced theese kind of problems and perhaps how to solve them!!

The guy i work with doesn't have any problems so it's weird that I can't get it work!! We are doing the exact same thing... Any ideas to solve it?!

Thanks in advance...