[Elecraft] KX3 won't stop scanning-- help!

[Julie Royster]

Hello out there!  My husband Larry's KX3 has gotten stuck scanning on all
bands when in any mode except Data A for PSK.  
He never intentionally started a scan - not sure how this happened.
Howard at Elecraft suggested reinstalling the original factory config file,
which I did, but it did not help.
The manual says to press any button to stop scanning, but no luck.
Ideas, anybody?
Larry would like to try using RTTY but cannot until we get this scan thing
to stop.
Cheers and 73,
Julie KT4JR