A few daus ago I got a new Graphics card (GTX560) and started playing Skyrim with a great FPS. However, I noticed that I still got a few lag spikes every now and then (mostly when people or animals appeared), and that they were not graphic lag. I tried cleaning up the insides of my computer, and while that fixed it a bit, I still get a few spikes. CPU is Athlon II x4 (631), and I've got 4GB DDR3 RAM. Windows vista 32bit if it means anything, too.