Identity Safe not accepting my password

Hi. My Norton Internet Security has just performed an update, after it did it asked for my primary password to log back in. However, when I tried to open my vault I was taken to a different Norton login screen than I am used to (i.e. when logging into the vault) and I was asked to log into my account. When I logged in, it did log me into my account but would not allow me to enter my vault. I tried my account password and my vault password and neither worked. I use internet explorer and have a Norton toolbar installed which was working fine yesterday before the software update.