[ddouglass]

What resolution do you have your computer screen and tv set to?
What I do for Screen Print is to capture it (ALT-Print Screen) then open Paint and paste it there. Save it as a JPG format. Then you can attach it to a post.
If you are looking at the Preview with no songs playing, then open the Show Display and click on the Intermission tab up top. Down on the bottom of that tab is the SND changes for it and I bet if you make your changes there it will change them in the Preview when you click apply.
I think what you have been doing is trying to change this on what opens first when you open the Show Display which is the Lyrics tab and you will not see those changes immediately which is what is confusing you. There are two places you have to make these adjustments. That is so you can have it set one way for the Singers during there songs (I have mine set for 2 singers) and another way for inbetween songs (Mine is set to 7 or 8 singers).