My wife and I have identical Samsung Galaxy S3 phones with Verizon Message+ for our text messaging. I can start a message, pick a recipient from my contacts, and keep going back to contacts to add recipients by tapping on them for a group mesage. When my wife try to do this to create a group message, each time she goes to contacts to add a recipient, it replaces the prevous chosen recipient leaving only the latest choice in the To: box. rather than adding to it. I can't find a setting to turn on group messaging on her phone, or any settings different between her phone and mine. Any thoughts?