I have 2 SGS4's -- both have same problem. When I answer/place a call & place phone to my ear --not using the speakerphone-- any number of displays appear. Such as the notification screen, or the world clock is displayed, or the notification screen that allows you to rearrange icons (i.e. using two fingers to reorganize icons). I have had many galaxies, beginning with S 2 thru S4. Switched to VZW..they have no clue. I checked settings for display including sensitivity on both phones but nothing has worked. This happens every single time I answer the phone. I have also researched this but cannot seem to find any answer. Anyone have any clues?