[Elecraft] problem with k3 in data mode

[NK6A-Don Minkoff]

I seem to have a new problem with my K3 and RTTY mode.  I set up, as I 
have been doing for over ten years, DATA mode , AFSK, 1275 -170.  I have 
never had a problem using MMTTY or N1MM with MMTTY.  Now, all of a 
sudden my power slowly goes down after starting up where I set it. If I 
set the mode to LSB and the software to AFSK the power stays steady and 
doesn't drop.  The only change to my station is a new PC from last Oct. 
I use a SignaLink to my K3.

Anyone have a clue where I should look or change.

Thanks,

Don

-- 
Don Minkoff
NK6A