Been trying to get this sim to run for over a week with no success. I've tried almost every trick suggested in the forum short of re-installing Windows. (Too many things that would have to be re-installed and too much time expended for just one sim.) My machine is my own build (about three years old) consisting of Windows 10 64 bit build 18362.535, Intel I7 6850 processor, Geforce 1080 graphics card and 128 Gb of Corsair RAM. The original RFactor, Project Cars, Project Cars 2 and the GPL 2020 Demo all work flawlessly along with a couple of flight sims, so the machine is not the problem. I've tried re-running the Direct X files and runtime files from the support file. Also checked the setting of the graphics card within RFactor and verified all files through Steam. When I attempt to run the any of the game launches the launch screen disappears for a split second before reappearing with no game start. Any ideas as to what is happening here?