I may not have the message words right, but the principle is as follows. The setup boxes get unchecked when you click ok to the question that says something about reset to your display. I never click ok because of that very issue. PITA to have to go reset all the flags everytime. Clicking that box works for Sean because he uses so many models that other folks send him and that use the same channels he has assigned in other models. As long as you are never using duplicate channels (unless on purpose), I would NEVER, EVER click the option to reset that comes up when you open a sequence in preview.