Locians, I recruited Greg Waltz, who is an OpenGL guru developing his own modeler with GTK. He will be taking charge of the rendering engines for the 3D loci. The messages to follow will be from our initial conversations. Jeff -- J.W. Bizzaro Phone: 617-552-3905 Boston College mailto:bizzaro at bc.edu Department of Chemistry http://www.uml.edu/Dept/Chem/Bizzaro/ --