I been receiving a lot of blank text messages on my phone. I have sprint and and my girlfriend has cingular. Whenever she sends txt messages I get them but there is no message. So we always go back and forth about whos service is better so it would be nice to know which carrier is likely to be causing this problem. So if anyone has any ideas it would be great to have support the next time my girl and I have our whos carrier is better debate.