For the past few weeks my computer has been lagging. Just moving my mouse around the desktop makes it lag. Games, videos, music etc lags. I thought it was a bad video driver so i installed an old driver but still lags. I tried a clean boot & stills lags. I thought it might be my internet but I unplug the modem & it still lags. I have a new hard drive & new video card everything else is roughly 7 yrs old. So i'm thinking maybe it's the motherboard or some other hardware going bad. My spec are windows 7 professional, intel core 2 quadq8300 @ 2.5oghz, 3.50 gb ram, gigabyte geoforce gtx660 with driver 314.22. Any thoughts would be appreciated. Thanks