[Elecraft] k3 Mic gain self resetting to 1

[Russ Edelen]

After returning from Elecraft for repair and updating my K3 (1087) will 
reset it's Mic gain to 1 and Compression to zero.

I backed up the radio's configuration when I get it back and reloading 
it does not solve the problem, which occurs at boot up more times then not.

This is a barefoot setup with computer logging/control feeding a 178 
foot extended zepp with 450 ohm twin lead.

Is this a symptom of RFI to the radio? Anyone have any suggestions?

KG7VQ