When I go to access my main menu, when you have to slide it to the right or left to unlock your phone. It shows a number, to tell you if you have any new messages or anything. Now, mine says "1", but, I don't have anything new. Does anybody know why it says this? I turned my phone off, and then back on to see if it would fix it, it didn't. I might have a missed call that I don't know how to access, because I am somewhat new to this phone. Can anyone help me please?