Hello again,

>
> When you fire up the Console (typically via "java 
> sim.display.Console"), one thing it does is try to determine all the 
> simulation classes in your system.  These classes are defined in a 
> file called sim/display/simulation.classes and are listed by class 
> name.  Console tries to load each of these classes so it can display 
> them in its list of available simulations.
> Anyway, the #1 reason why Java can't find classes referenced by a 
> simulation class is because it's referring to Java3D stuff and you 
> don't have Java3D installed.  But it's possible that there may be 
> other reasons.

hm, when I explicitly add j3dcore.jar to the build path of my eclipse 
project, the error disappears.
That is good, but strange since it worked without this on my Laptop. And 
I definitely have java 3d installed because the 3D heatbugs start 
without problems if I start the console via mason\start\mason.bat.
But anyway, I am not really using 3D stuff, so I will ignore this 
error/bug/warning and get on with my stuff :-)

Axel