The screen window allows you to view the picture sequence including dissolves and videos. The quality of display in the screen window depends on the kind of display that has been chosen. See Choosing the method for screen display.
To display an activated screen, click on Preview screens in the function bar below the main menu. The same way the screens can be made to disappear. As an alternative, you can also press the F10 key.
The Render Displays for full screen playback are opened by clicking Show Render Displays.
If you have defined several screens for your project but don't want to display each of them, simply remove the checkmark in category Screens (Media Pool) to prevent screens and screen fields from being displayed.
In order to be able to display a screen, at least on screen field must be enabled, i.e. provided with a checkmark.
For playback in fullscreen mode only one screen must be activated. If necessary, deactivate any screens in the Media Pool that are not required.
See also Configuring screens