In response to D. Paithankar's request for information on ball-&-stick displays on workstations: the ab initio code TURBOMOL, by Ahlrich & his group at Karlsruhe, comes with a program that displays molecules. The package was written for unix-based workstations & can be obtained from him. I'm sorry I don't have his exact address (it's on his papers) or his e-mail address. Irene Newhouse