That's weird, I saw the exact same thing (identical location and screwy icon) on my MPB right after setting it up. Went away on its own at some point, though I've forgotten what I did that fixed it (just rebooting a couple times, I think, or it might have been installing a new prefpane.
Since it only seems to occurr on new Macs, I wonder if that cache file isn't getting screwed up durring the setup process or something.