[Elecraft] JT65 Problems

[John Green]

I have successfully made JT65 contacts with a prior HP laptop using it's sound card and a K3 with the new K3S synthesizer. When I used a new HP pavilion laptop, its sound card, the set up indicates CAT and PTT is working and the K3 responds accordingly. But the K3 will not transmit. I have tried many modes, adjusted ALC, but can't get the K3 to transmit. Is there a K3 setting I am missing when attempting to run JT65 with WSJTx version 1.7 or 1.8? 

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Respectfully, 

John Green WA9HUP 

"A free people ought to be armed." George Washington