So I bought an essentially new condition Xbox 360 Fat (white, OG model) and whether I turn it on via the controller, console itself, with or without the HDD attached, the green lights on the actual front of the console itself (not the TV boot up animation) do the boot up sequence and all, but they kind of "stutter," so to speak. It isn't a smooth animation. They fade in and out in a very stuttery fashion. Does anyone else's Xbox do this, and should I be worried about anything? It works just fine.