Laptop Logs and Hangs when playing FIFA2008

I have An Asus A8Series Notebook.. Everything works fine except when i play FIFA2008.. The game is running very slowly and i can only play it for a few minutes before the the computer hangs.. Can't find the problem until one day i tried to disable the sound.. Played the game and it ran with no problems.. when i enabled the sound the game started to have problems again.. Pls help me solve this problem.. i would really appreciate it.. Tnx in advance..