All - Used to know way more about PCs and drivers but I digress. I think, that old cards like I have are not affected nearly as much as say the new RTX 3000-4000 series are with the new drivers set. I can tell you, that 531.79 worked with X-Plane, but, prior driver did not and got errors. I have not flown but two flights with the new driver, but my RTX-2070 card worked fine with it. No DX-12 until the bugs are ironed out, and at this rate, more than likely late this year.