i was editing a project, while i did a big mistake, i pressed the "x" button on the video preview in the upper site of the program, and now i can not how project is going, i am able to hear just the sound. How can i go back when i had the video preview? this is a pic where you may understand better what's happened
Judging by the OP's screenshot, he/she may also need to press View > Window Layouts > Default Layout (Alt+D, D). A small inaccuracy in the text re how to find Window check boxes, but the screenshot's right. (Cornico probably edited the text by the time I got this out)