I have had my iPhone for a couple of months now and never had this problem before.. I can connect to wifi and go on the Internet but when I'm not connected to a wifi network and it is on 3G it wont load any Internet pages, receive emails, voice mails, or use any app's that require Internet. I checked to make sure that 3G was connected. I have tried resetting the network setting but that didn't seem to work. I'm very frustrated and have no idea what to do. I will take it to Verizon in a couple of days if it still doesn't work. Is anyone else having this problem??