I recieved an error two days ago saying "out of disk space". After restoring my phone to factory the ability to recieve MMS/SMS went kaput! Suprisingly I can send but not recieve messages. I was on the phone with Sprint for hours with to technicians. One of the techs implied that some of the early batch of phones from Best Buy have this issue. This is just one of the techs viewpoint. I am going to swap the phone today and see if it resolves the issue. I switched to Sprint specifically for TXT so this could be a deal breaker. More to follow.