For everyone that is having problems with their third CD installing....it is a bad CD it would seem. 
 
 I tried returning the game twice to the same place and got bad CD's from the lot they had. I have heard that other people have exchanged their game and are now able to install without any problems. 
 
 I am waiting for a new shipment of games to come in to try this myself. Anyone with other solutions, please post here!!