I'm currently having trouble opening both (D)Athena and (D)Artemis. When I first installed Demeter a couple months ago, the programs worked properly without any issue until recently. In both cases, the command prompt and the splash screen appear momentarily, disappears, and then nothing happens - the program never opens. To my knowledge, no settings have been changed that would prevent Athena/Artemis from opening. In contrast, (D)Hephaestus and (D)Atoms open and appear to function properly. I've tried uninstalling/reinstalling Demeter 0.9.13.1 in addition to installing the Updater 0.9.17, but I keep having the same issue. Any suggestions would be most helpful. Operating system is Windows 7 Enterprise. Regards, Roberto Roberto Rodriguez Development Engineer UOP LLC, A Honeywell Company 25 E Algonquin Rd., Des Plaines, IL 60017 Office: Bldg. 2, 350-B Office Phone: (847)391-2582 Cell: (815) 351-4481 Email: Roberto.Rodriguez@uop.commailto:Roberto.Rodriguez@uop.com