Hi Pavel! Thanks for the reply. It does seem to be working though in the current version as long as I choose advanced level in the gui. Does it make sense though that it is lowering my Free-R? Also, the upshot is that the Fo-Fc maps are much flatter. I can see waters to build but only in the 2Fo-Fc sigmaa weighted maps so it does certainly seem to be doing something. Anyway, I look forward to the docs on it when you officially release it. Seems useful! Best- Joe ___________________________________________________________ Joseph P. Noel, Ph.D. Investigator, Howard Hughes Medical Institute Professor, The Jack H. Skirball Center for Chemical Biology and Proteomics The Salk Institute for Biological Studies 10010 North Torrey Pines Road La Jolla, CA 92037 USA Phone: (858) 453-4100 extension 1442 Cell: (858) 349-4700 Fax: (858) 597-0855 E-mail: [email protected] Web Site (Salk): http://www.salk.edu/faculty/faculty_details.php?id=37 Web Site (HHMI): http://hhmi.org/research/investigators/noel.html ___________________________________________________________