Hello friends, i am using the windows 7 64-bit system and i am not able to play the game on the system, i am having little trouble with the game about the performance and also with the sound of the game. I have installed the game on the system, the game earlier was good, but as i keep on playing the game then the game is been lag and also it does not give the proper sound. So can anyone help me and give me some thoughts or the suggestion to solve the problem in the game. So please help me. Thank you.