When navigating to the Investing "Dashboard", the display goes completely blank after a second. The resolution for this is to navigate to the View menu and select the "Use Large Fonts" feature. If that box is subsequently unchecked, the Dashboard display returns to normal and everything functions properly.
That being said, the "Use Large Fonts" setting does not appear to get saved when the Quicken file is backed up, or when the Quicken program is exited. As such, each time the Quicken application is opened, or when a file is restored from backup, this issue returns.