[Elecraft] K3 problem

[n1ix at n1ix.com]

My K3 developed a problem this weekend.
None of the front panel pushbuttons work correctly.

For example:
ATU tune   changes the  AGC value
ANT = NB2
RX  Ant = NB
PRE = ATU
SPOT = HI .Lo cut 
CWT = CMP
etc.
Other pushbutton don't work at all.
A/B REV A->B, Band, Mode

The only button that works correctly is the "Power"

I've done a "parameter reset" I had to use the spot button instead of
holding in the Shift knob.
I also tried reloading firmware,
Any other suggestions ?

Dave N1IX