It turns out that it's because of a quirk in the new Intel drivers for Ibex. I can work around the problem by turning off Compiz visual effects. I also need to reduce my screen resolution, but that, again, is a bug in the game.
It turns out that it's because of a quirk in the new Intel drivers for Ibex. I can work around the problem by turning off Compiz visual effects. I also need to reduce my screen resolution, but that, again, is a bug in the game.