Ever since I applied the recent firmware update, my touch screen "freezes" every once in a while. The screen will be unresponsive to any touch input for a couple of seconds. It seems to be just the "input" that freezes (as opposed to the whole tablet), as I am pretty sure that I have received notifications/sounds while the screen was unresponsive. Also, during this time, if I press the "home" button, it does not respond immediately either -- after a slight delay (I assume the same as the touch screen becomes responsive again), it will go to the home screen. I have "Thumb Keyboard" installed and thought maybe that might be causing problems, so I set it back to the standard Samsung input keyboard, but I still experience these "freezes". Is anyone else experiencing this? It is VERY frustrating -- especially when playing a game!