Hi Doug: Ken was telling me that he had a lot of difficulty in seeing the error output produced by Demeter/Java. I see now what he meant when I use my laptop. The messages disappear before I can read them. Ken had a very simple solution: to send the error messages to standard out, I think. Then this allows to use a scrollable window or to redirect the output. Please can you double check with Ken so that we can actually see all the useful messages produced by Demeter/Java while using Windows. -- Karl