Google Chrome is currently the only browser I have that will work with Identity Safe. After installing MS Office 365 today I opened Chrome 51 (shows current version) and clicked on the 'vault is closed' icon on the Norton toolbar. Everything shows I am logged in and up to date in Norton Internet Security. After clicking the vault icon the splash screen comes up with a 'Sign In' button, but nothing happens when I click it. I can click on the setttings or help button on the splash screen and get to those, but no sign in screen shows up. I've tried minimizing all other screens and still don't see anything.