Title pretty much says it all. I had 2 GB of RAM, DDR2 667 MHz. I took out one of my generic 1 GB sticks of RAM and replaced it with a 2 GB Corsair 667 MHz DDR2 stick. Now I have 3 GB of RAM, and my Windows Experience Index dropped from 4.8 to 4.7. Is this actually a problem? And if so, why the hell did upgrading cause Windows to rate my computer lower?