For some reason when i play games like Battlefield 2 demo or Americas Army Operations i get alot of keyboard lag. For example it will start out fine. I press it button it goes where i want it to go. But after about 2 or 3 minutes may sooner never reall counted i will press w to walk or d or a and any other key and it takes a second for it to do the action. I have a custom built computer with a amd 64 3200, x800 pro, 1.5 gbs or ddr400, 120 g harddrive a cheap 500w power supply, and a couple other lights in stuff in my case one light and three fans with lights on them. plz help.