So, I have a Samsung Galaxy s3 and the other night, while scrolling down instagram, the touch screen randomly became unresponsive. I tried taking out the battery, putting it back in, letting the phone die and then plugging it in to charge, jfkldakfda. The Home, Menu, and Back buttons are completely functional, just not the touch screen! Has anyone encountered this and solved it? I'd really rather not go to AT&T just yet, but.. it's looking like I might be reactivating my old iPhone. D: Please help!