well i was playing FarCry3 with directx11 and everything worked just fine. No lags, no bugs, no crashs.
The next day I wanted to play again but the game was running with directx 9 and it was just lagging all the way. I wanted to set it back to directx11 but i couldn't change it, just like if it was not installed or something. I changed nothing on my comp.
I already tried to launch the exe farcy3_d3d11 but then Uplay wants me to insert a the key which i get from Steam and it then says that the key ain't available...
I also already contacted Ubisoft and Steam support, both of their answers weren't of any help..
Thank you guys