RF2 isn't allowing me change the RealRoad setting
I finally got rFactor2 up and running, and would like to experiment with changing the track grip level by adjusting the RealRoad setting. When I go to Session Settings/Practice 1, the RealRoad setting shows as Default. When I click on either the '+' or '-' sign, the little frame around the sign lights up, but the value of RealRoad doesn't change. I can change every other setting on the Practice1 screen, but RealRoad is stuck on Default. I've tried exiting the game and re-launching, but that doesn't help - I'm still stuck on Default. Any suggestions? Thanks.