i don't know if it's either a crash or an error but anyway. im using windows vista and i encountered technical problems. i tried to change the compatibility to windows xp service pack 2 played the game again and i still encountered the error. An error, when i play GDI clan and build any buildings (ex: power plant) the game will suddenly close and returns to desktop. other clans like nod and scrin get the same error more likely in the mid game. i tried almost everything re-instaling, tried to another computer (also vista) and updating windows but still encountered the error. help! please and thank you.