Hey guys, Quick question. I picked up a 2G 2GB Nano today and the click wheel seems to be acting kind of strange. Whenever you're scrolling using the wheel, as you move your finger around it, it makes a weird clicking sound (not from "clicking" sound effect obviously) as if the wheel isn't attached correctly internally. It's kind of like it's loose, and as you move your finger from one side to the other, it "moves down" on that side. Hope this is clear. Has anyone else experienced this? Should I exchange it? Thanks all!!