I've read the other threads concerning something similar to this but this is not the same. When I have full bars, some of my text messages (to various people) will not go through. If I try to resend the message, no matter how many times I try, I get the same message. All messages go through perfectly fine but my phone seems to think they don't. If I copy the text and send it as a different message, it will go through. This is really annoying since 1/5 text messages I try to send to someone returns that message despite it actually going through. My phone isn't rooted, is fully updated, never installed a text messaging app, and I have tried several reboots and hard resets. Does anyone have any suggestions on how to fix this?