I have the X800Pro. I was running AH2 earlier today fine and yesterday as well. I hears someone say you could increase performance by switching the resolution from desktop. I did'nt need it but wanted to see what it would do. I clicked the ATI icon in the start up tool bar, and switched it to 1600X1200. I then proceeded to open AH2. When it opened I did not see the backround images, just a very light blue. And the cursor turned into a huge white box half the size of the screen. I switched it back down and again tried to open AH, and still the same problem. I have the Catalyst drivers, help would be greatly appreciated.