I cannot delete the history, cookies and cache on my ipad. I have read available treads. I closed all open safari windows, pressed clear history in the safari pop up window, even quit safari, went to settings and pressed the buttons for deletion of history, cookies and cache. I restarted the ipad. The disappointing result is that cookies are not deleted (sites I visit still have record of my login and password info), when I start safari and enter "www" in the URL window long ago visited sites still appear. How can I truly delete cookies, cache and all history?