Sometimes when I'm playing America's Army, the game just hangs usually after a sound emits. I tried lowering sound quality, but it still hangs. I also tried to lower graphic details, remove decals, dynamic lighting, but it still hangs. This also seems to happen sometimes when my computer has just finished loading windows and I leave it idle for a couple of minutes and I return to find it frozen. It's getting on my nerves. Anyone's help will be appreciated. Thanks.