I've forgotten what it is called but how to disable the "feature" where the timeline is disrupted by a double preview window (the view looks like when I was edting betamax tape over 30 years with source and output monitors). I know the esc key is supposed to return to normal editing mode only my Vegas 14 sometimes locks up after pressing the esc key and I end up losing my work. I guess I'm miskeying to get into that special editing mode but I don't need it and want to avoid it. But how? Thanks