Okay, I think this will be the last one tonight, if for no other reason than the fact that I'm about ready to go to bed... Is there any chance that there is or will be a mailing list for Chimera users, so that newbies (like me) can learn from people who are more experienced? I've used other software packages, and this kind of a community is always a big plus. And, yet again, thank you. Geoff.