When I first got my phone, it asked for my voice mail pin. I did not have it at the time so I hit "Cancel." Now that I have my pin and I go into my voice mail, there is a screen that says that I need to set up a password and greeting. Anyone have this problem? If so, is there a way to get them back. I had a few voice mails that I had not listened to. This was not an issue when I went from my 3GS to my 4S. Did I screw up by hitting cancel?