title_body: Nook Simple Touch: erratic or unresponsive touch-screen
upvoted_answer: I found that the elastic straps of the cover I was using (one at each corner) had permanently deformed the nook st sufficiently to unalign the IR light grid over the screen. I'm now getting the nook to respond by bending the top front corners forward to realign the ir grid.(by placing my thumb at top front centre and my index and little fingers on the back of the two upper corners)
  Awkward, but it works until I can get another Nook st.