I have a Mac, so this isn't a Microsoft issue. I am doing an amended return, so it's possible this wasn't tested, but I've come to the same blank screen (completely blank, no back button, no continue button, no nothing). The previous screen allowed me to specify that I needed to enter information for a Bond (among other securities), and the box with "bond" is highlighted. I press on Continue, and get this blank screen. My TurboTax is on the latest updates.
