I've had my Hero since mid January and with the default messaging app when i sent out texts I would get a message back from 9230 saying "Message sent using invalid number of digits. Please resend using 10 digit number or valid short code. Msg 2114." I checked my numbers and they were 10 digit numbers. I downloaded Handcent and that seemed to fix the problem. Yesterday, Handcent started doing the same thing. Called Sprint and was transferred from one tech agent to another. They had me do resets and something with a MSID number and still no success. Finally the Sprint rep told me there was nothing else they could do. I'm thinking it probably has something to do with needing the update but I'm not very tech savvy. I don't text very much anyways but it is convenient sometimes. I am recieving texts, just can't send. Anyone else having or had this problem or can offer ideas to fix?