I have not had time to test. All I can say : - HDR was Off. - Sun occlusion was On Happy to see I'm not the only one who have this problem
UP Back on the original topic. Now, I'm sure there is a link with the weather. This week, we had a race on Mid Ohio. Monday, for the training, there was sun and no problem. Wednesday, for the race, rain came and we could see the "strange thing" on the track. Me : Nvidia GTX570 + No HDR => Problem A friend : ATI 6950 + HDR => Problem So not a Nvidia / ATI or HDR On / Off problem.