Hello, I have a desktop computer which is powered by Intel Dual core processor and has 1gb RAm. The computer has a Nvidia graphic card and is installed with Windows 7 operating system. I have installed Grand theft auto 4 on my computer but I am not able to play the game properly. I am facing Bad performance of Grand theft auto 4 on Windows 7. The game lags alot while playing. I think the configuration of the computer is good enough to run the game without any problems therefore I am not sure what is causing the problem. So if anybody knows solution to the problem then please suggest some.