I just recently started playing DIII again and am noticing some serious issues that were not present when I played shortly after the game was released. I was able to fix the crashing/performance issues with other tips on this board, but cannot seem to fix a really unpleasant graphics bug no matter what I try. Around all lights, chests, and anything glowing (i.e. dungeon entrances) as well as some other random places I am getting extremely pixelated images - sort of a skewed checkered pattern over the whole object.
My video card is an ATI Radeon HD 5770
Currently I'm running Ubuntu 12.10 32-bit with Crossover 12.0.0
Previously I was running Bodhi Linux 32-bit (based on Ubuntu 12.04 but running E17 instead of Unity) with whatever version of Crossover was current when Diablo III first released. Obviously there have also been significant updates to the game itself since last time I played.
The only other thing of note is that I've added a second monitor to my setup.
Any help would be greatly appreciated.