I don't know what happened, but after disassembling my DS lite so i can fix shoulder button, my DS lite upper screen became kinda blueish. I made picture below of "Tomb Raider underworld DS" (i used TR: underworld as an example) right half of the screen has normal coloration and blacks, like normal DS screen should have.. and left one is what my whole upper screen looks like... Blacks are not pure blacks, but blueish.. colors are colder. And also, i noticet that when i play the game (DS is opened) the screen is blueish, But when i close DS and open it the colors are normal for 1 or 2 sec. and than it slowly turns blueish again... Help anyone?