Whenever I turn on my phone, it will resend a text that I sent to someone from a conversation previous to when I turned it off. It used to send just blank texts to the first one or two or three people in my messages, but now it sends full texts that I sent from before by itself. I deleted all my undelivered texts. Plus I got task killer and I shut down my messages before I turn my phone off but it still does it. How do I stop this!?!?!