Hello, I believe I have successfully installed PGPLOT, Ifeffit, and the horae suite of programs onto my mac OSX and have constructed executable files for artemis, athena, atoms, and hephaestus. I am now at a loss however, as when I try to run them they fail and say they are looking for _iff_exec. Is this part of the Ifeffit program? After I built Ifeffit, I can't seem to find any executable file that opens Ifeffit. Did I not successfully install Ifeffit? Also, what is the purpose of iXAFS program for Mac OS X? when I run it I am asked to direct the program to the data files and there is a button for each of the horae suite programs but they don't launch anything. I am very lost by all this and would appreciate the help. Thank you, Nate Turner Graduate Student Washington State University