i have installed the full version of the game and when i insert disc 1 it loads up but theres no run file, so i tried starting the game from the desktop shortcut. I can get to the ,ain menu but wen i click new game it cuts off automatically. i have tried unistalling it and re-installing the basic version with no luck. i have all the system requirements so i'm at a lost. any help or advice would be much appreciated.