Hello, I do not know since when this happens, but in the moment LyX always tells me, that I would have to install X11 to open »gs«. Why does it ask that? I use LyX 2.0.7.1 on OSX 10.8.5. It might be, that this only happens when I open older documents, I am not sure up to now. Does anybody have an idea about that?
Best Jezz