Hi Jeff, I would like to try the beta version of iXAFS for Snow Leopard. We have here in Cinvestav-Merida sevral MAC Pros's with Snow Leoprad, and we have been relying on iFeffit for our ddata analaysis. So I would appreciate very much to have this version. Thanks very much, Jose Jose Mustre Departamento de Fisica Aplicada Cinvesatv-Merida 999 942-9435 mustre@mda.cinvestav.mx