My first smart phone, so I'm very much a newbie at this. Received my first call from my Sister this afternoon. I didn't answer it so got a missed call message. She is in the phone book, so expected here name to be displayed, but it only had her number. So I clicked on the update contacts button, and tried to scroll through to her entry. But somehow I clicked on another person entirely, and now my Sisters calls have the wrong label. I just can't figure out how to correct this. I've deleted the wrong person altogether, name and phone number. But that only stops the wrong persons name being displayed, it still displays the wrong number, even though that number has been deleted, and it's nothing like my sisters number. Any assistance greatly appreciated.