Just a little curius about the touch screen. I've been playing on the DS lite for some quite time now and i began to notice dirt stains on it. The screen wasn't very smooth when i used the pen so i decided to buy a cleanser and wipe it! Now that i played it, it felt kinda strange , like i did something that was a big mistake. I used a laptop cleanser,( the fiber thingy and some fancy cleanser) did i do something bad or is it just me?