Ok, I’ve got a user, I just built him a C 7 machine. The new one has an ATI card; the old had an NVidia card. I got it to use the radeon driver, so it looks ok (he has a very wide screen). However… he has a program that renders a molecule (which you see as many connected lines, in various colors). However… it used to display it against a black background, and suddenly, it’s a transparent background, showing what’s under that window.

Anyone got any ideas about that?

mark