I am a bit confused on this whole APN Settings thing. I don't even know what APN Settings I need to put into my phone. I have a Samsung Infuse 4G...it was my old AT&T phone. I tried putting in some APN Settings that were given after activation but I don't think it worked. I am able to send out text messages. I am able to receive text messages. I am able to send out emails from multiple emails. I am also able to receive emails from multiple emails (ie:yahoo, gmail) However, I am unable to send or recieve picture/mms messages. I have rebooted my phone by cycling the phone off and turning it back on...or does rebooting mean Master Reset...I doubt that. So can someone share the right APN Settings with me or tell me what else I have to do to be able to send and receive picture/mms messages. Thank you.