Thank you for the suggestion.  I cleared browser cache, no change.
  I made a copy of the survey; same issue occurred.  So I tried deleting that question that was triggering the "error" and when tried saving/previewing/publishing it displayed the same error message, this time pointing to a different question, which also has not been edited/changed in anyway since last editing/publishing successfully.  Any other recommendations?  Is this just a bug?
  Thank you very much for your time.
 Liz
  