hi dave thanks for your input, much appreciated does the attached provide you with the information that you require? reading left to right; 1 + 2 are system info, 3 is SketchUp info - do I need to make changes to the latter? have checked drivers + all up-to-date I'm afraid I can't find anything about OpenGL support in Start > Settings > Display... [image: j18N_graphicsinfo.jpg]