Sometimes when a friend with a Blackberry has texted me the messages have shown up with just "No Content" in them and my phone turns off when I try to read it. The latest time this has happened my phone turned off immeadiately upon recieving the message and it continues to turn itself both off AND back on again over and over without me doing anything to it. I've tried taking the battery out, I've deleted the no content messages, and I can't figure out how to stop this from happening and get my phone to stay on for more than a couple seconds. The phone model is the ENV3.