iPhone 4 - text messaging issue

Hello!

A friend is having a problem with her iPhone, and a search led me to this forum. I am hoping that this wasn't already asked in a previous post - if so I apologize! I did search but didn't turn up any results that seemed to match the issue.

She has a WD378LL (Sprint iPhone) with 5.1.1. The issue is that days after sending a text message and subsequently deleting it, that deleted text will occasionally appear, mysteriously on it's own, while composing a new text message. At least once it has sent the message to the recipient. I don't think this is a network issue, but rather with the phone itself.

Any advice?

Thanks!
Doug

 

Thanks! I will try that. May be worth noting that the phone is only about 6 weeks old...