this happened sometime between Scribblenauts and Diabolical Box came out for the DS. i remembered playing Scribblenauts with no problems. then when Diabolical Box came out, i noticed a crackling sound when i turned on my DS. and it continued to crackle afterwards, but would come in and out. it's adjustable by the volume, so the crackling can be turned loud or mute. it also affects headphones. i keep my DS in a soft inside, kinda-soft outside zipper case. i never dropped it while in or out of the case. has this happened to anyone? or have any suggestions to this?