It's been almost one year since I've got my Ds, and today, all of a sudden, it ended up stucking the touch screen. While I was playing Geometry Wars, the shooting cursor got stuck on the top left corner and didn't got out of there... I tried restarting the Ds but the screen's touch function ceased to work. After some hours I tried again and it worked, but only for some 5 minutes, then it stopped working again. Is there some solution I can try to fix it without opening my Ds? I fear bricking it, and also don't want to pay huge amouts to get it fixed (because I don't have the money to even buy a new one right now).