[Ifeffit] Sudden Difficulty with Importing Data into Athena

Hi Bruce, 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. 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. If I find a clear solution to what may have happened, I'll be sure to reply again to share the answer. Tony Kelly Air Force Institute of Technology Nuclear Physics and Engineering