On Thursday, February 02, 2012 01:18:14 pm Tony Kelly wrote:

Thank you for the quick reply. I tried uninstalling and reinstalling twice, though I suppose I could try a different version. I have also made sure that my x11/xquartz software was up to date, though I have not changed or added software or updates between the last time it worked and now.

I have to ask the obvious questions ... :)

It literally worked last night, then it no longer worked this morning.

I've never had antivirus software on my macs, but I could download one and do a scan to see what that gives me.

I am not suggesting that. I was suspicious that AV software had deleted something as a false positive. You might have mentioned in your original email that you were using the Mac. In this case, I don't see yet how it matters, but it certainly is awfully big omission.

If I find a clear solution to what may have happened, I'll be sure to reply again to share the answer.

Try opening a terminal and running athena from the command line. The advantage of this is that you will get to see whatever error messages get issued when Athena runs into her problems. Also Darek's suggestion of checking to make sure the input data has not been somehow corrupted is a good one. B -- Bruce Ravel ------------------------------------ bravel@bnl.gov National Institute of Standards and Technology Synchrotron Methods Group at NSLS --- Beamlines U7A, X24A, X23A2 Building 535A Upton NY, 11973 My homepage: http://xafs.org/BruceRavel EXAFS software: http://cars9.uchicago.edu/ifeffit/Demeter