Hello Sir, I wanted to report that I am facing the same problem as the one faced by Mengling Stuckman (dated: Wed, 19 Mar 2014 11:53:10 -0700.) It does not appear to be problem with the operating system because I am facing the same problem in systems with windows 7 as well as windows xp. I have tried a fresh install on a new system with windows 7 os, and the same problem occurred. Even a simple artemis file in which I have just imported and saved the processed file from athena cannot be re-opened in artemis. Kindly sort out the problem. I have attached one sample artemis file which is giving the problem and also the demeter log file from %APPDATA%\demeter. https://www.mail-archive.com/search?l=ifeffit%40millenia.cars.aps.anl.gov&q=from:%22Mengling+Stuckman%22&o=newest Thanking You, -- Yours Sincerely, Badari Narayana. A. R. Ph.D Student, Nanoscience and Nanotechnology, c/o Prof Rajeev Ranjan, Electroceramics Lab, Department of Materials Engineering, Indian Institute of Science.