Tom,
If you loaded this particular jet into the DS -24 from another Jeti radio and the layout was different then you will get this message. If the other jets were installed from scratch on the DS -24 then they would not show this. Check the functions menu on the jet that is giving you the error message and make sure you have the right switches controlling the functions as you want them. I had the same problem switching from the 16 to the 24.
Bob