I also test this 9.3 driver and opengl didn't work wery well with compiz..
OK, OpenGL seems to work now with compositing (I use KDE4 as compositor), but SMPlayer (an MPlayer front-end) results in this:
That is, video is rendered all over the application. Not immediately, but only after a period of time while doing other stuff (like switching desktops etc.)
I also test this 9.3 driver and opengl didn't work wery well with compiz..
What happens when you don't use the frontend?