Dear Colleagues Leif Laaksonen of CSC, the Finnish IT center for Science, has just released version 2.2 of gOpenMol, a highly customizable program for display and analysis of molecular structure, trajectories wavefunctions, etc. It is available for free, and versions exist for Windows and Linux. Download gOpenMol from: http://www.csc.fi/gopenmol/ (Note: new site with much more info). Tutorial available at: http://www.chem.utah.edu/chemistry/faculty/anderson/gopen.html New features: Improved biomolecule display options -- new plumber options. VRML output of static images and trajectories. New options for selecting substructures, new display options, improved user interface. New interface to user-written DLL or SO add-ins. Improved Hydrogen bond calculations and customization. Much improved documentation and technical info on the new web site. Additional customization options.