[Elecraft] PSK 31 setup help

[Dave Bell via Elecraft]

My lineup is old IBM desktop computer running XP, Rigblaster Advantage,  
fldigi, and the K3.  
 
I can print signals fine.  Waterfall is good. 
 
Two problems: While the waterfall looks good when I'm transmitting, I'm not 
 getting any indication on the K3 -- no power out, no ALC and I am not in 
TEST  mode.  The transmit light on the Rigblaster Advantage goes red and my  
outgoing message changes from black to red  as it's sent, but somehow it  
isn't getting to the K3.  I have the VOX on, but the Rigblaster (or  fldigi) 
also keys the PTT.
 
Also, at the conclusion of sending a macro, the red light goes  out on the 
Rigblaster but the transmitter doesn't go to receive until I push the  XMIT 
button on the K3.
 
I have checked all of the connections several times, and they seem correct  
but I'm open to comments.  
 
Any questions or suggestions?
 
73, Dave