This is an update to he shaggy-dog story. I now have RigCAT working FB on the iMac with fldigi-3.13AH and I reverted to the version 3.11 TS-570.xml file on Dave's web page.
I may have to tweak in some of the configuration settings but happiness is no nag notes in the Event log. As I indicated in the earlier posting most of the problem was my error of opening the definition file in Safari rather right-clicking and just downloading the file. Safari saved the file okay but by default it saves Mac files with the box checked to hide the suffix. The missing suffix was the real reason I was never able to get RigCAT to funciton All seems well now.... I can run either RigCAT or Hamlib! 73 Dick AA5VU
