I saw the tip from jester yesterday.. but that did not work for me either.
Although I did get ArmA3 to start without crashing again when I manually changed the freetrack variable.
But eyeX still not working.
After that I was unable to even start ArmA3 without crashing , even when eyeX driver and infinte screen was NOT even running.
I had to remove all drivers and infinite screen from my system in order to get arma running again without crashing.