the bottom of the screen placement bit might not be ideal... i'm guessing the remote sensor for the TV would be located there. i'd placed my speaker in front of my TV and after 20 minutes of swearing and wondering why my remote wasn't working a light clicked on.

BTW! going from 2.1 to 5.1. it's wooonderful i don't know how anyone can live without surround sound.

What does this button do?