My Cell Phone Won't Send Text Messages. There's Always The Little Arrow Instead Of A Check Mark. How Can I Fix That?

Well, if you're with verizon, then the check mark will only show up when you send text messages to other people with verizon, otherwise it will just have an arrow.
But if you send a message to a person with verizon, and it has an arrow for a few minutes,
take your batterie out, put it back in, and cut your phone back on, that works sometimes.