[Dx4win] psk-31 help

[W3GT@aol.com]

hi phil here, i am new to dx4win and the psk-31 program. dx4win works great 
with the rig ( kenwood 570-d )with the packet set up it sets the freq. and 
band and the whole bet, but now i want to try psk-31 i can rec. ( with a 
rigblaster ) but i cannot send. i cannot key the rig. i looked at all my 
settings and find nothing that i did not do. but there has got to be a 
setting on the rig or in the program that is not set right. hoping someone 
can walk me thru this. thanks for any help you can give me.  phil  w3gt