I've recently ran into an annoying problem with iMessage. At first I thought it was just a network problem, but now I'm not sure what it is now. About 90% of my messages being sent through iMessage are getting a red (!) and saying 'Not Delivered'. But my messages are being delivered. I'm currently have a conversation with someone right now, the other person is receiving all my messages, but I'm still getting the red exclamation point beside every message. Yet sometimes I'll have a conversation with someone, I'll get the red exclamation point and they won't receive my message. So I'll have to click on it and 'Send as a Text Message'. Is anyone else having this problem?? Any help would be appreciated, its driving me crazy. I use Rogers and live in Toronto. Thanks!