Yesterday, I got my new iPhone. And the sms was working fine through the day. When I woke up this morning, I had several texts. I tried to reply to them but I just got an exclamation mark beside them. How do I fix this? Second of all. How do i access the Internet outside on 3G on my iPhone. And if my contract includes a 2GB data plan, does that mean my Internet outside is free? Of not, how much am I supposed to pay. I am new to this iPhone stuff. Thank you.