HI, Excuse cross postings. Marvin 4.0 has been released. The package includes a new 3D rendered macromolecule visualization tool, MarvinSpace. Changes in 4.0 release * 3D rotation in sketcher. * New templates. * Visualization of lone electron pairs. * Improved image quality in small scale. * MRV, CML and RDfile import/export improvements. * MS BMP image format is supported. * Calculator Plugins: o new plugins: Isoelectric Point, Tautomerization and Resonance o new topological properties in Topology Analysis plugin, o saving of chart results as JPEG or PNG. MarvinSpace details MarvinSpace is a Java based high performance 3D molecule visualization tool. It is available as a standalone application, as a Java Applet and also as a developers' toolkit with full API. MarvinSpace can visualize small molecules, proteins, nucleic acids, crystals, various molecular surfaces, molecular orbitals as well as volumetric data such as electrostatic potential and hydrophobicity. It provides automated methods for molecular overlay, geometry optimization and conformer generation using forcefields and property calculations. Manual overlay of structures and manual change of internal coordinates are also available. Information can be added by the user through labeling and annotating atoms, bonds, ligands, receptors, complexes, surface regions. To try out MarvinSpace please visit: http://www.chemaxon.com/shared/MarvinSpace/ Thanks Alex -- Alex Allardyce Communications Director Chemaxon Ltd Máramaros köz 3/a Budapest, 1037 Hungary Tel.: +361 4532658 Fax.: +361 4532659 e-mail: aa at chemaxon.com