Hi All, When I open a molden input file in molekel (this includes the sample structure included with the package) it does not read the vib. freq. or trajectory parts of the file. I can view the MOs for these structures but not the frequencies or trajectories. Does anyone know what I am doing wrong? Thanks, John

You are not doing anything wrong, it's the Molden reader that is not reading frequency information; this will be fixed by the new OpenBabel Molden reader.