I just noticed this morning that all my text message history is gone. I checked my settings and it is still set to not delete old messages. I have plenty of space on the phone and my card. The only things that I have done lately that I am suspicious of are installing "Notes" by Yuli and "OneBusAway" by Joulespersecond.com. I have also recently updated "Solitaire Free Pack" and "Arity calculator" among others. My email history is fine. Has this happened to anyone else? Why did this happen? How do I recover my old messages? How do I prevent it from happening again?