I dropped my Ipad2 a short distance from my chair to the floor. At the time, the cover was on and the Ipad2 was inactive. Everything works fine except for Safari now. I can enter a URL, or use bookmarks, all of the various ways of getting to a website, but when the page loads, the screen is dimmed and will not move or navigate, as if another screen was waiting for an answer. Cannot move page up, down, or change size. I can get to an initial page but cannot navigate around it, open links from it, or even move it. What should I do?