I dock the video preview window while editing> and then float it to do final checks of edits.
what this means is I am docking and floating the video preview window quite often.
for my first few movies i made in vegas, when docked the preview was small and when floating the window would fill to project size.
Now , every time I dock or float I have to do extra mouse clicks by manually setting
"display at project size"-or not
Did I uncheck something that automatically resized the preveiw?