Touch features not responding
My iPad 3 is non-responsive. It appears to start as normal but all touch screen options (slide to unlock, password numbers, etc.) show a "box" around the area when touched but won't respond. I did several hard re-boots but no changes. Connected to my computer via iTunes. It recognizes the iPad as normal and then tried the "restore" option but have to disable the "find my iPad" option first, which I cannot accomplish, so that won't work either. Any ideas?
iPad 3-OTHER, iOS 8