[Elecraft] Audio (setting) problem

[Jim Miller KG0KP]

Several questions here:

All of a sudden my receive audio is horribly over modulated and the audio 
volume knob is almost uncontrollable because it is so sensitive and I have 
to adjust it for each person speaking.  I had the menu up and spun the vfo 
knob to change frequency and do not know what I changed.  I really think 
this is what caused it.  I had loaded 4.17 and that may been when it started 
and went back to 4.14 (downloaded version, not "saved version), no change, 
and now to 4.22 and it is still doing the same thing so I think I messed it 
up a setting.

Ideas on what to check?

Are my "settings" saved when I save my configuration?  I will go back 
farther to see if that will clear it out if so.

I am assuming (there is that word again) I can go to any previous SAVE to 
restore my settings to that condition and then jump directly to 4.22 for 
instance.  True?

THANKS, de Jim KG0KP