I have in the past tried to package JGR and the underlying rJava. This worked sometimes rather well (and truth be told, Simon had put a lot of work in) but things with the different Java packages always change in some way, shape or form. Plus, JGR really needs the still-not-really-free Sun Java for the GUI parts. Does anybody here regularly build / use / update rJava and/or JGR and have some pointers to share? Thanks, Dirk -- Three out of two people have difficulties with fractions.