I have a Galaxy S3 and can't send or receive pics even when Data is turned on on my phone. It says that "Network connection isn't available" when I attempt to send, and it says "cannot download picture at this time" when I try to receive. Picture messages are included in my plan. I don't have Data Block on my phone, I've tried being connected to Wifi, turning off wifi and just having data on, etc. etc. and nothing works. Any suggestions!?