Dragon, Your problem seems to be related to graphics issues, try to reinstall graphic drivers but before try to change ingame graphics settings, turn off trees or turn theme on if they off, the same with roads and the rest, try different resolution (should be native)... Authentication error is well known bug, sometimes u can wait ages to reset it, my mate advised me to start another steam game but it is not 100% working. Did u try previous beta patch?
__________________

Asus P6T V2 Deluxe, I7 930, 3x2 GB RAM XMS3 Corsair1333 Mhz, Nvidia Leadtek GTX 470, Acer 1260p screen projector, Track IR 4 OS ver5, Saitek Pro Flight Rudder, Saitek X52, Win 7 x64 ultimate
|