everytime i launch Arma 3 it loads into the main menu, i can still press buttons and change settings but it freezes after 5 seconds and only way i can go out of it is ctrl+alt+delete. This happend out of no where, the game always runs fine. plz help :(((

specs:
i5 4200h
gtx 850m
6 gigs of ram
it runs 25-40 fps in 100 player koth