I have a copy of Warband and I want a friend to try it out online before he decides to buy it. If I install it on more than one computer with my serial key, is it possible that both serial keys can get online at the same time? I know other games check for multiple serial keys on the game network so that two people with the same key cannot be on at the same time. Is that the case with Warband, as well? I don't know too much about game design so I'm not sure if this is a stupid question or not, so if it is, sorry. 
