Recently i've been unable to send mass text messages. It would come back with a notification that the messages were unable to send. I was able to before with no problems but this seemed to start happening about 2-3 weeks ago. And sometimes when i attempt to send out a mass text, my phone won't be able to send out any text messages at all, even single shorts ones. I'd either have to keep trying or wait and then it would start letting single sms messages go through. It seems like the attempted mass texts disables all ability to send any texts at all. btw, I'm using just the normal texting program that came with the phone. I've called my provider and they said that nothing is wrong on their end...is this happen to anyone else?