I'm not sure if I need to check a box, or what. I've got several voicemails left for me and my phone doesn't let me know that I have a voicemail(s). There have been times when I don't have any reference of a voicemail in my "Messages" folder (although it shows that I missed a call), and I don't don't have an icon on the home page indicating one. Anyone know what I need to do to make sure I get a prompt to notify me of a voicemail?