psylo 10 Posted August 16, 2009 Hey guys. I installed Arma2 on my new PC totady. It worked quite well. I started it a few times and I played both Multiplayer and Singleplayer. Never got any problems. Then i went away for lets say 20 min and let ArmA running. After i come back my pc had crashed and i had to power off so i can restart it. Now I cant start Arma again cause always i see the Bohemian Logo and one Sec later the game crashes with this "bad serialnumber given in startup" message. Can anyone help me? Share this post Link to post Share on other sites