Hi Dave,
please make sure you are not running PanoVolo in full screen mode. You can always turn this off by moving mouse cursor all the way to the top of the screen, the menu will appear and you can switch off Full Screen mode (View menu).
We have released v. 1.7.6 of PanoVolo - drone panorama stitcher for Windows and macOS. Main new feature is the addition of Panini projection - useful for "wide angle" aka 3x3 panoramas.
Full list of changes...