Help! When I first got this Droid Eris, I set up a phone number wrong for son #2. Don't know where I set it up, but it only messes up when my son texts me and I text back. When I text back, it goes to that old wrong phone number. I have deleted him from both Google and from the phone contacts. But when the text reply comes from someone else telling me I have the wrong number, I can hold down the message and it shows me the message details. There the window says something about SMS 555-555-1212 (the guy's phone number who is texting me back). I just don't get how I messed up my phone, I can text my son directly and it's fine, but when I reply to his messages, that wrong phone number gets my reply. How can I fix this??? Thanks in advance!!