Hi, I just upgraded my Lumia 720 to WP 8.1 and when connected to my PC I can not see content od Phone neither SD card. I can not even create anything on the phone. In File explorer I just see my lumia conncted and empty. I use a password (forced by synch with company exchange) and a do unlock before connecting. It does not help. Anybody hase the same problem? Thanks. Miro