[ddouglass]

The Show Display command is set to not be openable during play. All changes have to be made when no songs are playing. The changes to the Lyrics screen will show the next time a song is played.
Each screen has the capability of hiding or showing the Marquee and singers list, so you can customize those to your liking. My preference is to have the Marquee show only during the Intermission screen.
The Show Button is for resetting the Marquee after you make changes to its content which you do through the Marquee button which can be used while a song is playing.
Do you happen to have some kind of equalizer or limiter/normalizer running on your computer? Maybe included with your sound card software? If so you could try disabling those and see if it that helps.