No playback at all 1.0.3

Please choose the menu item Edit > Device Setup. What audio driver is chosen there? There is button called Device Control Panel, click on that and a new dialog will open. Please make a screenshot and post here.

Also, would be good if you create a simple piano project with just a handful of arbitrary notes. Save it, then zip the project file up and attach here. In the project data I might find more clues of what’s wrong with your setup.