R-cmdr package is nice R-gui. Help.start() work if your browser support java script, then I think you haven't a java-plugin installed on your browser Best regards! A.S. ---------------------------- Alessandro Semeria Models and Simulations Laboratory Montecatini Environmental Research Center (Edison Group), Via Ciro Menotti 48, 48023 Marina di Ravenna (RA), Italy Tel. +39 544 536811 Fax. +39 544 538663 E-mail: alessandro.semeria at cramont.it