I don't think that OpenGL is the problem. I now have that feature turned off and it still crashes. I know manufacturers want to protect their software as much as possible but could it be that it's the anti-piracy thing that's causing it? If they've written something in the programme to cause it to crash if it's being used illegally, could there be a problem with this part of the programming that's causing intermittent crashes for bona fide users? If it is then maybe they should look at another way of doing it.

Gill