I'm sure this is a dumb question that's been asked hundreds of times. I (or possibly my kids) have accidentally installed a contact shortcut on the main screen of my Galaxy Ace. All the advice I see on how to delete it boils down to select and hold the shortcut icon and drag to bottom of screen. But if I select and hold the contact shortcut, it just dials the number. How do I avoid this? I've been accidentally phoning this poor guy (not even a close friend) several times a day because the shortcut is right in the middle of my main screen. (Yes, I am quite old.)