Been trying to solve issue with RR since Nvidia update driver 417.35. I had 2 lengthy qualify/races prior to UD then straight back in to RR. After around 5 - 6 laps I start getting choppy screen each and every time. It wont let up even if I park on side of road or run replay so it is game over. Set up PC1, PC2, rF2, AC, ACC to match CPU, GPU, Ram, FPS usage/temps etc and was quite surprised I managed to get so close between all of them messing with the settings that the only thing I noticed was RR was DX9. I could not reproduce the issue in the other programs and in some cases run a full hour without so much as a wobble. Usually run 1920 x 1080p but went back and hammered some of them again with settings high at 3840 x 2160. Does anyone know if the DX9 is getting unruly with the latest drivers?? because I am running out of ideas.