I just activated my Droid Razr Maxx after breaking my previous phone. I followed the instructions for activation and the phone appeared to be working just fine. I can make phone calls, surf the internet using WiFi or 4G, use Facebook, download apps, etc. Everything is working great on my phone except for texting, which includes regular text messages as well as multimedia messages. If I send an SMS I get an error message saying "Unable to send msg! Retry sending?" and if I try to send a picture message I get a message saying "Invalid Destination Address." If I try to send a text to myself from the Verizon website I get an error saying that the "Message is undeliverable." I also understand that people can't text me from their phones. I've tried various fixes like *228, rebooting my phone, deleting all my text history, but nothing seems to work. Any assistance would be greatly appreciated!