Legitimately, I can't use this device if I have to play a game of "have you moved the navbar to the left, right or center?" every time I switch apps or books. I'm looking at returning it and buying an equivalent Samsung. Of course, now I'm re-entering the shopping phase, which took forever the first time. And perhaps the Samsung, once I've picked one, will *also* have a "it's perfect except once every ten minutes it releases a bee and the bee stings you" feature, and I'll have solved nothing.