Batboard

I have been programming MInitor III's and IV's for some time now using a home built programming station identical to the one listed here:
http://radioetcetera.googlepages.com/minitorprogrammer

This has worked with no issue. However, when I try to program a Minitor V, it fails. I cannot communicate with the V. The pinout I am using for the V is shown here:
http://radioetcetera.googlepages.com/m5 ... t-full.jpg

Obviously I have two different stations for the IV and V but the circuit is the same. I just switch cradles. I have verified continuity in the cradles. Is there something else I need to do; am I missing something? I am currently using software V1.4.0

I would re-check all you connections.An you are putting the pager in programming mode ?Thats always my first question to everyone...

Yes, the pager is definitely in programming mode (channel C, long beep...) and all connections seem fine, yet I agree that must be the issue. I just cannot seem to locate the problem. The pinout I provided is correct?