I've had this problem before, but it went away by itself. Now it's back on every track. I have the entire screen flickering, and there are skewed textures all over the place when I drive... I've attached a screenshot to show what's been happening. Is there any way I can fix this? I read somewhere else that it may be an overheating GPU but I'm not quite sure. My graphics card is an Nvidia 9800GT, and my motherboard is an Asus P5Q Turbo. My monitor's resolution is 1920x1080.