Hello! First of all, what a great product! Thanks! On most tracks if i follow an AI and they drive off the ''clean'' racing line, it seams as though some dust or dirt is simulated. Somehow this doesn't look right and gives a huge fps drop (from a steady 61 fps to 20). Anybody has an idea of what might be wrong or how i can change this? Normal smoke like from locking up the tires when braking gives no problems at all... I tried changing the special effects setting but this didn't work. Thanks.