Hi all, Last week, I discovered a problem that might affect some of you. The current Windows installer package, ifeffit-1.2.11.exe, has a problem to do with how the ifeffit library was compiled. Fortunately, this problem was subsequently fixed. If you have installed the updates that have come out since ifeffit-1.2.11.exe was released, then you are fine. If, however, you have installed the installer *without* installing the updates, then your version of Artemis will be performing its fits slightly incorrectly. To find out if your installation is affected, start Artemis and select "About Ifeffit" from the Help menu. * If the version number for Ifeffit displayed in the echo area at the bottom of the Artemis window says "1.2.11" then you need to update. * If the version number says "1.2.11c" then you are fully updated and will not suffer from this problem. If you need to update but are, for some reason, unable to do so by the normal channel, there are instructions for updating by hand at this wiki page: http://cars9.uchicago.edu/ifeffit/IfeffitOnWindows/WinUpdater If you are using the incorrect version of the Ifeffit library, your fits will still be reasonable, but the best fit values of your parameters and all statistical parameters will be calculated differently from the normal version of Ifeffit. In my limited experience, best fit values tend not to different outside of their error bars, but they are different. The reason I noticed this problem is because here at Brookhaven, our internet access goes through a proxy server. If you are not configured to have the runner go through the proxy server, then it will be unable to find and download the updates. The solution I found for my colleague's computer was to set the http_proxy variable in C:\Program Files\Ifeffit\config\updater.ini to the address and port of the local proxy. I will work on making a new installer next week when I return from an experiment at the APS. For those affected by this long-standing but recently-discovered problem, I apologize. 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/~ravel/software/exafs/