I think the problem is not related to WDDM 1.1 (The official position of STO devs is that WDDM 1.1 is old and we should install drivers with WDDM 2.3). I have GeForce 560 Ti with WDDM 1.1 and game works perfectly.
Now I'm playing a game with GeForce videocard with WDDM 1.1, Direct X 11 and Windows 7 and no problems. I think that problem is not related to WDDM 1.1.
Hello guys, I wrote one bug report to Cryptic and they told me to update driver because old driver uses WDDM 1.1 and after November patch we need for driver with WDDM 2.3. I tested the the game (Steam Launcher) on another PC with GeForce videocard and WDDM 1.1 and game works very well. I will try to start game through ARC…