kira153

Yesterday, i bought combined op on steam. So this morning I wanted to launch the game and it didn't work. When I launch arma 2 it say "bad serial number given in setup" and when I launch OA it's "data file too short expansion/addons/structures_e.pbo . expected 676064447 B, got 644218880 B" and combined op doesn't work either. What can I do ?