Please! need help quick!

hey guys i just got the game yesterday and started dynasty mode with sixers rite away. I don't know it's just me but the problem is, whenever i exit after the game in the dynasty mode the program crashes!!! i have played like hundreds of minutes so far and because of this stupid problem i have no NBA points!!!! The strange thing is, it always crashes when i exit after the game , not during the game.... weird..
is there anybody who had similar experience or solution???

Also, I just tried game in different mode and it's all the same.... i can't finish any game.... it always crashes after game when i click exit to main screen whateva.... is it becuz of direct x or something??? cuz the game itself runs really well with almost every detail setting set to high and it's really smooth in the game....by the way i have mobility ati radeon 7500