Ah. I just notice loads of graphical glitches in Open Source software. For example, if you make the text larger in FireFox it doesn't increase in size smoothly, it remains all thin and stuff up to a certain point, when it makes a jump to being bold. In internet explorer the transition seems much more smooth. I assumed this was due to the limitations in OpenGL... Obviously not. Thanks for correcting me. Incidentally, do you know of any good articles on the subjects? The comparative technical capabilities of each? Cheers, Robin. 2008/7/12 BUGabundo