I have had this issue intermittently since receiving the phone, seems to start in apps, then continues when I go to the home screen. The 2 that it happened in today, Clash of Clans, could only tap certain parts of the screen at certain times, pressed home button, then same thing on the home screen. Same thing happened after watching some video in the Dish Anywhere app, couldn't tap any of the controls in the app, pressed home button (thinking I would close the app to see if that solved it) then the same wonky touchscreen behavior on the home screen. Others having this issue? I haven't seen any new posts, that's why I ask.