Okay, I was fooling around with the DS unit at Wal-mart, and for some reason the stylus won't work in Wario Ware. Curious, turned it off and booted back to the main menu and tried out Pictochat. There I discovered that when I tapped the screen, it would active a point about an inch away from where I tapped. Funky.
So can this happen? And is there a way to correct this? I figured it was probably from some idiot kid banging on it or something.