I just got a refurbished Pandigital Supernova DLX. It worked great yesterday and this morning. But all of a sudden the touch screen won't work. It will power on, and I can unlock it, but that's all. When I touch any of the icons, either nothing happens, or weird things happen. Icons will move around the screen, or sometimes the entire home screen will move to the right. A couple of times a photo popped up out of the gallery, but it kept resizing itself. All of the buttons on the bottom work, I can press Home, etc. But nothing with the touch screen. Any ideas?