Hi all, Forgive what is essentially a naive Mac question (I think), but perhaps it would be of service to others hoping to get IFEFFIT and the companion packages up and running on OS X: As background, the small amount of UNIX experience I have is coated with a 15-year layer of rust. I would very much like to start using Matt's and Bruce's new packages on my Mac, but am finding the installation process a bit daunting. I'm therefore starting simple, with what I suspect is a simple problem. I downloaded the IFEFFIT binary installer for OS X from the IFEFFIT home page, installed it, changed the .tchsrc file in my home directory as indicated in the installation directions, and restarted. I then opened the terminal program that comes with OS X, typed IFEFFIT and got: ifeffit: Command not found. I can see the program sitting in the right directory, and even if I sit in that directory and type the command I get the same response. I am using system 10.2.6. What am I missing or not doing? And if that works, then I'll start in on Artemis and Athena... --Scott Calvin Naval Research Lab Code 6344