Hi Tommi, I'm trying to get a newer version of ghemical compiled for some new research projects. I obviously have Open Babel installed and I know about libghemical. But where am I supposed to get the libmopac7 source code? Also, what are the requirements for the CVS HEAD code vs. the 1.51 code? What code needs a good "push" for the next release? Cheers, -Geoff