Apologies for the double post.
Is is there some form of button combo you need to do to apply the settings. Whilst I was in there I adjusted the automotive picture sensitivity lower so the screen doesn't go as dark. The quick start settings and the room adaption settings haven't made a difference since I left the menu?
I made the same tweaks to the Room Adaptation so it doesn't go as dark in low light. No there's nothing to press to apply. Just make sure the right setting is highlighted with the little rectangle, then just back out. The results are quite subtle and take a few mins to slowly transition. But for a test turn off all the lights in your room and try setting 4. Watch a movie or TV for about 10 mins. Then go back and try level 1. And watch that for a while. You'll notice the difference. The tweaks to this adaptation are really only noticeable in low light.