Problems with playing World of Warcraft on my 6600gt

I baught a XFX 6600GT recently and have had it installed for about a week. World of warcraft was fine until a reformat, then every time I tried to log in, the text was blurred out and impossible to read. I finally log in blind and the game appears to be missing textures or SOMETHING because my character on the log in menu was solid green with black vertical lines. I tried Blizzards Repair program, reinstalling DirectX, reinstalling older drivers (81.85,) and even reinstalling the game itself. Any help would be GREATLY appreciated.