Windows 8.1 64-bit Issues 1)When I run shortcut - it doesn't starts, it starts only when I open "Launch RFactor.exe", not the shortcuts 2)When I use Alt-Tab in race, sometimes I got this View attachment 16249 As you can see some parts disappeared 3)Marussia, when I race sometimes, engine stalls, I think engine turns off, and then when I use ignition again - RPM is still 0, but gear indicator shows high rpm, why it won't run, I don't get it, engine is pictured gray, not red, and I wasn't colliding something at that moment I was able to drive skippy without such issues, not sure. 4)I was learning how to drive formula cars and I got this, somehow it got there, Monaco, View attachment 16248 5)Not long time ago I tried Demo, and I fell down though that Silverstone down on Formula or Corvette I don't remember, but it's pretty annoying. I was shocked when I first got this issue, I that that it's game engine thing, so that gave me not very good impression about game, haven't tried this track in full version, other tracks work incredibly well) Great game