Hi All, OK, sorry for the delay, but I think that http://cars9.uchicago.edu/~ifeffit/src/iXAFS3.0.3.dmg should now work well for both Mac OS X 10.6 and 10.5. That is, all the applications launch for me on a 10.6.5 machine and a 10.5.8 machine, and seem to work as expected. I'll try this on a PowerPC machine within the next couple days. I didn't include the Python module in this installer (I forgot), but put it at http://cars9.uchicago.edu/~ifeffit/src/IfeffitPython-2.0.1.tar.gz This *should* work now, but then I thought the last one was going to work too. It might be best to run this through the Ifeffit Shell, or to be extra careful in setting the environment to source the /..../iXAFS.app/Contents/Resources/local/bin/iff_init.sh As always, any feedback on what works and what doesn't would be greatly appreciated. Cheers, --Matt