Hi everyone, I just got a k750i and configured it for tmobile USA through SE's website. Everything works alright for the most part, but every time I power on the phone and go to send a new text message, I get a "validility period" with the following text: "setup required. for info, contact your operator or www.sonyericsson.com/support set up now?"
so i tell it yes, then set it to network maximum and everything works fine until i turn the phone off and power it back on. I'm not sure what to do, can anyone help me fix this?