There are several discussions at steam, the Codemasters Forums and also Computerbase found out about it while they benchmarked the game. All Radeon cards show dots on vegetation like trees and gras. Funny thing is that Dirt Rally is a "Gaming Evolved" title and is also promoted with AMD cards. The problem is there since the very beginning, that means for about 8 months but even though many users have filled in a bug report there is no statement from AMD according to the known issues part in every driver that released since. Do you guys think AMD is just not able to fix it and therefore go silent on the topic? Its pretty embarrasing if your game is running without flaws on nvidia cards.