[Elecraft] K2 - No Audio Except during Menu

[Zac Brown]

Hello,

I'm on page 64 of the K2 manual.  No matter what frequency I tune, I hear 
absolutly nothing. The S meter shows the right-most light is lit. 
However, when I tap the menu button and scroll to the "Atu" entry, all of
the sudden, I begin hearing audio and the s meter shows only the second-to-the-left
light is lit. As soon as I exit the menu, the audio completely stops and the
s meter goes back to the first configuration. I am also able to hear audio when
I press the tune button twice - the first time I press it, P1 19.1 is displayed ...
the second time I press it, (and hold it down) I hear audio. As soon as I depress
the button the second time, the audio goes away.

What am I doing wrong?

Thanks,

Zac Brown
K2# 4907