New KD used here.
I dont know what i did to make it stop working, but the little video thumbnail thing in the top right of the screen stopped working for me (it was just playing the same clip over and over), so i got rid of it, and had hoped to put it back on, so it would work.
I couldnt find how to put it back on though. in trying to get it back to the default settings I changed everything / deleted a load of the different bits of the editin screen. Not its just blank, with only the time line left.
I tried uninstalling completely and reinstalling, in a hope to reset it back to default, get all the layout back the same, and get the thumbnail working again, but my messed up formatting stayed on there.
How can I solve this ? How can I return it to the default layout ??