Hey I'm hoping someone can help pinpoint a problem I'm having. I have one friend that I send text to him and he receives it, and he replies and it appears it's sent, but I never receive it. I can receive pictures from him no problem. He is also using a Droid 2 VZW. I did a factory data reset on my phone yesterday, and began receiving his texts again for a few hours, then they stopped again. What could be going wrong?