I have a MM a900 and the message envolope will not clear. I have tried to reset it in the phone but it says there is no icon to clear. I also updated the phone thinking there might be something there but it won't budge.I have taken the battery out , turned the phone off and back on with no results. It hasn't effected the phone in any way, but it is annoying when you think you have new messages. Any suggestions?