iMessage sent as text for first message
After the iOS 6 update, my iPhone 4S through Sprint will not send iMessages to iMessage users on the first text. It sends the message as a text and when the iMessage user responds it changes to iMessage. How can I fix this? I've restarted my phone over and over and turned iMessage on/off. I've connected to iTunes and tried to see if maybe it's a glitch that has an update but nothing comes up. The only thing I have not done is restored my iPhone, and I would like to do that last if NOTHING else works. Everything is backed up, I sync my phone everyday because of work and scheduling.
iPhone 4S, iOS 6