I have read and tried everything suggested so far on text messaging with my P168C but still can't text out. The texting worked fine for a couple of weeks, then, one day when I tried to send a message to more than one person (for the first time) it stopped working! I have followed all directions to change settings, I have reset the phone to original settings, but nothing seems to be working. I went to AT&T to check that I had text service available and they said I do - they tried the phone and couldn't text either - but said it had to be the phone. Anyone have any ideas? By the way, I can't send pictures either, in case that helps with answers. Thanks for any suggestions!!!