chances are your a lefty and you were playing some involved shooter on your DS, it's bound the happen theirs a little pad and ball I believe (that's usually what they use) I believe it's silicon but it either gets moved or wears out and then you get no response or you have to hit it in angles to get response, in the Ds's case you use the screen for a lot of the shoulder buttons so no real worries.
I'm Unamerica and you can too.
The Official Huge Monster Hunter Thread:









