Hi John - If this problem occurs primarily when you have maps loaded, you may also try reducing the Map Radius and Sampling Rate in Edit > Preferences > Maps > Map Parameters. I've also found that enabling the Dynamic Map Sampling and Display Size options speed things up somewhat if you need to use a larger or higher-sampling-rate map.
Cheers, Jared -- Jared Sampson Xiangpeng Kong Lab NYU Langone Medical Center Old Public Health Building, Room 610 341 East 25th Street New York, NY 10016 212-263-7898 http://kong.med.nyu.edu/ On Jul 17, 2013, at 2:56 AM, John Bruning <jbrun...@gmail.com<mailto:jbrun...@gmail.com>> wrote: Hello, When I load a protein in Coot it rotates very slowly and kind of glitches (occurs with any protein I load). I'm not on an old computer and have the most recent version of Coot installed. I have CentOS 6.3. Any suggestions? Thanks, John Bruning