Hi Folks, With help from Ken McIvor and Jeff Terry, I've built a new version of iXAFS for Mac OS X. This version should be considered experimental, but for the brave and/or foolhardy please try it out and let us know how it works. This version offers the latest versions of Athena, Artemis, and Hephaestus, and the latest version of Ifeffit. It is meant to be universal (for x86_64, i386, and ppc), though I have not fully tested this. The download is fairly large (~74Mb), mostly because it includes a full distribution of Perl built right in (so it doesn't interfere with the system Perl). It also provides a "complete" Unix shell-like environment that can be used for those who need it. For example, a python module is included that can be installed. The disk image is at http://cars9.uchicago.edu/~ifeffit/src/iXAFS3.0.dmg This should be able to be installed by dragging the iXAFS application to any folder. To use the Unix shell, you'd put . /Applications/iXAFS.app/Contents/Resources/local/bin/iff_init.sh in your .profile or from a bash Terminal command prompt (assuming you installed to /Applications/). To install the Python module, first run iff_init.sh above, then copy and unpack /Applications/iXAFS.app/Contents/Resources/local/extras/IfeffitPython-2.0.0.tar.gz and run 'python setup.py install'. Again, this should be considered a beta release. Please be willing to look for and report problems. Cheers, --Matt