Siddhartha P Sarma

Dear Colleagues, I had recenlty (last night) upgraded my Mac OS from 10.6.8 to El Capitan. I then tried installing the MOLMOL from this site. The Version I had installed was Macintosh-10.8.4-MolMol-V1.0.7.2. when running molmol, I got the following error message "attempt to add non-widget child "dsm" to parent "idl" which supports only vendor widgets" or something equivalent. The part in bold is verbatim, the rest I have filled in because I do not remembet the exact message. Nevertheless, the solution...