[Elecraft] K2 deaf

[H. Cary III]

K2 #5266 was playing beautifully on cw and I aligned the filters last
night for SSB, had no problems with that alignment. When I finished, I
found my K2 deaf on ALL bands (it transmits just fine!)...The RANT is
OFF, I have good tone with the SPOT feature (yes, I went through the
troubleshooting steps), even went so far as to do a reset...nothing
restored my K2's ears.  Oh, yes, the antenna jack is connected to the
135' dipole and not the dummy load.  

I'm hoping its something really simple but at this point (actually at
1:30am), I'm mighty frustrated.

Anyone have any ideas?

73,

Cary,  K4TM