In my new MAC OS 10.8.5 MacBook Pro I followed the instructions given by Apple and installed the Xquartz application. I do see and I can work in my X11 windows when I call XQuartz.
However old programs like LyX, GS and Nedit do not work and claim that X11 is not installed. Any ideas?
MacBook
Pro, OS X Mountain Lion (10.8.5)