I get audable confirmation of ever icon I touch but cannot access any content. when I click on any icon a thin green line surrounds the icon but nothing is accessable. I do not neet audio facility but don't know how to disable this function. What is the correct way to re-set the device. I've tried, the device goes off but when I restart it everything is the same - still with voice, thin box lines and cannot access anything. Should I leave it till battery runs out? Any suggestions please.