Hi I am using the X20 for about a month now. When I first got it the picture was dark and details were missed. So I turned up the brightness from the picture parameter to 40. That fixed the issue and showed the details that were missed in the dark scenes but brought another problem. Now Blacks in most movies are grey and it's like I am watching a movie on an LED screen. My question is what is the best settings for the X20 to watch movies on an OLED screen?