Hi, Thanks for responding, Dan! :) Yes, I accept that dimesio isn't a troll, and I do apologise for that. Um, just to confirm that the log you're referring to is the one printed in Terminal after running the debug command I mentioned above? If that's the only log I'm supposed to be looking at then I can categorically state that the line: Code: trace:wgl:GL_EXTENSIONS reported does not appear anywhere or at anytime. In fact, a text search reveals no lines beginning: Code: trace:wgl:GL exist either. What do I do next now that you've confirmed that I appear to have followed the instructions correctly? Regards, S. PS: oh, btw I don't have any coding experience with C (or any other language beyond some extremely basic FORTRAN or PASCAL way back when I was at school :) ). Oh well.