I've tried downloading and installing beta drivers, stable drivers, custom drivers and even setting desktop resolution to 800x600 and then running the game...I'm out of ideas, how can I get D2 to not look like baby vomit on a screen with a resolution higher than 720p?

:edit:

Here's my specs

Core i5 2500k
570GTX
Z68 Gigabyte motherboard
Agility III SSD
8GB DDR3

Windows 7 Ultimate w/ SP1