[Elecraft] K2 & K1 problem??

[Hagood, Larry]

Hello,,
  I just replaced the 10 turn pot on my K1, all is fine except the frequency
slowly drifts downward on all bands?? 
  Do you think complete re-cal will fix this or do I have a problem.

  I am also constructing a K2, I am half finished with RF board alignment
part II, all is fine except when I tap the "rate/lock" button, I get "nOt
inSt" then it goes straight into the main menu, when I tap it a second time
it goes to the voltage current display, so then I tap the "display" button
to go back to the VFO and it does but it's on a different band then when I
started??? 
If I hold the "rate/lock" button, it goes into what looks like a memory
store mode????
  Also when I change bands some of the bands display the freq with one digit
past the decimal and some display it with two digits past the decimal, I
have not read the entire manual so I'm not sure if this is also a problem. 
 
Any input would be apreciated.
Thanks,
73.
-Larry AE6CP