Who is forwarding what where? I'm not familiar with cygwin-x. maj=149 is GLX, min=25 is X_GLXCreateNewContext. > libGL error: No matching fbConfigs or visuals found > libGL error: failed to load driver: swrast That sounds like there is no GL driver present wherever rendering happens. What does glxinfo say? Does it work with Xming? Regards, Martok