MOLMOL 2K.2, Version 2.1-2.6: Copyright (c) 1994-98 by Institut fuer Molekularbiologie und Biophysik, ETH Zurich Spectrospin AG, Faellanden, Switzerland, using Motif/OpenGL
Working binaries with menus -- good for Suse 11.1 I have built Linux binaries of molmol 2K-2 on RH v7.3 and RH v9. You can obtain these here but I cannot guarentee these will work for you. I do not have stock RH 7.3 or RH 9 distributions for software compilation because I regularly update these systems with apt-get (the RH version, natch).
The molmol software that is available from the website of ETH ZUrich is relatively old, and does not compile on Ubuntu Linux without some changes. I describe below what I needed to do to get it running.