My brother, being the computer genius as he is, decided to put alot of mods on civ 4(not warlords). I have tried to reinstall and start fresh, but I am stuck with a game with no catapults, no revolutions changing religions or civics and probably alot more. What I ask of you guys is how do I start fresh? I want my old game back 
Thank you for your help,
Rob

Thank you for your help,
Rob