I'm attempting to generate automated builds of coot pre-releases for OS X 10.6.X users. These are 64-bit. If all works well, there should be a new one every day (assuming a new source tarball is available).
http://sage.ucsc.edu/~wgscott/xtal/wiki/index.php/Stand-Alone_Coot Please let me know if it is problematic. Thanks. -- Bill Scott