[Elecraft] KComm error message: List index (4) out of bounds

[Bill Feidt]

I'm trying to get up to speed on G4ILO's KComm program connecting from a 
Windows XP computer to my K3 using the USB-to-serial cable provided by 
Elecraft.  I'm using v1.5 of KComm.  The radio control functions work 
fine. I have entered my call sign in the "Your call" field of the Log 
settings screen.  Using the default macro file, I

   1. Connect to the radio.
   2. Enter a call sign into the Call field of the logger.
   3. Click the F1 "Call stn" button.

and the program generates this error message:

   List index (4) out of bounds

   Press OK to ignore and risk data corruption.
   Press Cancel to kill the program.

If I press OK and re-press "Call Stn" the message is sent as expected.

The default F1 macro reads,

   ^c^t
   %c de %m %m pse K^r

Wonder if anyone has run into this problem and might have an idea as to 
what I'm doing wrong?

Thanks for any advice.

73,

Bill/NG3K