What model of the GBA SP do you have ags-001 or ags-101? If you are not sure, check the label on the back of the GBA SP and it will be listed in the top left corner. If you have an ags-001, which is the launch model, it is frontlit as opposed to the ags-101 model which is backlit. I have a [http://i163.photobucket.com/albums/t302/heisstack/pika_gbasp3.jpg|GBA SP Special Pikachu Edition] that I got for my birthday in 2005 and I have never had this problem. I also have an original Gameboy Advance that I modded to have an ags-101 screen and I have never had a problem like that with that system either. The only time I've seen something like that with a GBA SP is with the ags-001 model and that's always going to happen because of the way it is frontlit.