Hi folks: It turns out the 64-bit coot on OS X 10.6 is a bit buggy.
32-bit seems ok. If you need a recent 32-bit stand-alone for 10.5 or 10.6, http://sage.ucsc.edu/~wgscott/xtal/wiki/index.php/Stand-Alone_CootReal-space refinement and map fitting causes a crash that I will need some expert help fixing (how's it going, Paul?).
Sorry. Bill William G. Scott contact info: http://chemistry.ucsc.edu/~wgscott
