I bought the game 3 days ago and have been having numerous graphics problems including the following: Graphical artifacting, the game freezing and going black for 5-10 seconds and then going back to normal, what seems like character meshes not loading properly (models have lines at the joints; neck, shoulder, down center of body, etc.), terrain flickering. I have tried wiping the display drivers and reinstalling them, cleaning registry, lowering graphics settings (everything from max to lowest; all of which I get good framerates on, between 30 and 90 depending on how busy the area is). I've checked the temperature on my GPU while running, it sits between 65 and 75 C. These issues also happen randomly, sometimes I can play for 8 hours no issue, other times it happens 5-10 minutes after launch.

OS: Windows 7 Ultimate
CPU: Intel Core 2 Quad Q6600 @ 2.4 GHz
RAM: 4 GB DDR2 800 MHz
GPU: EVGA Nvidia GTX 560
Sound: Creative SoundBlaster X-Fi XtremeMusic