Please share what drivers you are using. I'm contemplating changing mine, again, in hopes of solving this. I'm using the latest official drivers (not the Beta set), 257.21
Edit: The corruption I'm talking about is where you open Kingdom Info screen and then when you close it you get some random texture overlaid on the screen. The game functions under that texture, but there's no way to get rid of it short of either turning on advanced lighting or going to the cloth map (and still any 3-D render will have the corrupted texture)
Edit 2: If you can get Advance Lighting to work (and, obviously, enabled in the game) also share your version.