Basically my bottom seems kind of discolored. I just got my DS and was wondering if this is suppose to be happening? The white isn't nearly as clear, and it kinda of looks multicolorish on white (you know when you clean your monitor with water, and left over is little drops of water that are different colors? Hard to explain, I probably sound like I'm on acid.) What I'm getting at is that the white isn't nearly as true as the top screen, and nor are some other colors. Is this right?