Trace-- 0 Junior Poster in Training

I just purchased a new comptuer, and with it, a logitech G15 keyboard. This is the issue (i hope the keyboard info will be relevant)

My volme control on the keyboard works perfectly fine. But what i want to know is why the Master Volume and Wave meters on volume control move at the same time, always equal to each other. I do not want this to perform this way. Any ideas?