[Elecraft] Need information

[Richard W Hemingway]

Hi, I am new to the list and need some information.  I have a K3S which I think is great, however, I  have a  problem.  I mostly operate PSK.  I do  this through fldigi  in a computer (Mac) and with SignaLink USB.  However I have been unable to TX to the K3S  with Fldigi (also with Coco Modem).  It won't make the red TX light come on or TX,  I also have tried using only USB with the same results.  With USB the receive comes on so faint that I can barely see it, and the TX is not accepted by the K3S. I don't know why the K3S is unable to accept the TXin either case.  Any ideas?  I am thinking that it may be something that I have set in the K3S?
A secondary poblem is that   when I go to the rig Cat xml files to download the K3 file for the rig description in the confirmation  of the Rig Description for Rig Cat, the only thing that I get is a bunch of words at the top of the page. I don't know how to download it in a form that I can use. ??
Any help would be appreciated.
Dick N5XRD