I've started installing the latest nightly builds of Coot that Bill Scott maintains. They go into /usr/local/bin/coot. It will open but the screen is white, if you move the window around on the Mac it seems to duplicate and worse, if you load coordinates or a map, nothing appears. I must have missed something in setting it up but if anyone has a suggestion of something I am missing would be much appreciated.
Sounds to me like an OpenGL driver bug. What happens when you try glxgears? Regards, Paul.