I got a DS Lite at launch. Some time ago I decided to ditch it, and so I did. Today, I missed it enough to get a new one. I only have one question: the bottom screen - the surface of it looks kinda irradicly "bumpy". It's not a graphic thing, it's kinda like there's a layer of plastic or something. I asked to look at another unit and it looked exactly the same. When turned on, you can't see it. I guess it's how it should be, but... I am fairly sure the launch unit I had before was completely smooth. Am I just imagining this, or is how the top layer looks on some units?