to piggy back on the last comment this has now happen to me. this is my situation:
i was editing on one screen then decided to extend the editing room with another monitor when i did that i moved the video preview box to the other screen. now when i went back to the trimmer preview there is nothing there. so if i apply an effect to my timeline i know its added but i cant see it until i render the video. how do i reverse this so i can see the effect on the screen on the clip that i am working on????
help! please…