[Elecraft] K3 and N1MM help please

[DBellW6AQ at aol.com]

I can't get my K3 to respond to the N1MM "F" keys.  The F keys  are all 
programmed and when I press one, the red TX light on the K3 lights up,  the 
receiver mutes, but there's no transmit signal on CW -- I haven't tried SSB  
yet.  The frequency on the K3 tracks fine in N1MM.  The K3 is NOT in  test 
mode, the CW icon is on, VOX is on, QSK is on.
 
My N1MM settings are: Com 1, K3, no checks, 4,800, N, 8, 1, DTR  Always On, 
RTS Always Off.  Incidentally, N1MM suggests for a K3 that both  DTR and 
RTS be on, but it didn't make any difference -- same result both  ways.  Com 3 
is not checked under radio, but is checked for CW, DTR=CW,  RTS=Always Off, 
Tx=1.  No other Com ports have checks of any kind.   Incidentally, while my 
reading of the N1MM instructions would make you think you  need a check for 
Telnet, that is not the case.  Telnet works fine without a  check.  Packet 
may not but I didn't check.
 
My K3 PTT-KEY setting is rts - OFF.  I've tried about every  PTT--KEY 
setting there is and none of them work.  I must say that the  Config menu setting 
in the K3 Owner's Manual (the latest, online) is really  inadequate in my 
opinion.  Two of my computer savvy friends worked on this  problem with me 
and neither has come up with a solution.
 
Hoping for some light at the end of the tunnel.
 
73, Dave