Hi, I use to be able to play Modern Warfare 2 without any issues a long time ago. I had to uninstall it because I got bored of that game, and I re-installed it yesterday. For some reason I get lag spikes every now and then. Not teleportation lag, but FPS lags/stuttering. My fraps window tells me I am running it at 80-90FPS. When I get the lag spike fraps will drop down to 60FPS. This only happens in big maps, when I am in close range combat, or when I am nearby an enemy. I'm running on a 2.91Ghz Dual Core, 4GB RAM (+42.GB Readyboost), and an HD4870 512mb at 1920x1080 max settings. I can run very low resolutions fine, but my friends can run max settings (1680x1050/1920x1080) fine and their system specs are lower than mine. Why is it that I lag more than them when my system specs are better?