ox-latex export problem

[Charles Millar]

I believe this is a problem to do with hyperref. I export some subtrees 
to latex as pdf file and open. Four weeks ago no problem; tonight at the 
top each file the following shows up

    pdfkeywords=, pdfsubject=, pdfcreator=,

I searched the list but find nothing recent concerning this possible 
issue and nothing concerning hyperref.

Following is from my .emacs.d/init.el (including lines I commented out 
during the past year or two)
;;;;;;;;;;;;;;;;;;;;Export (ox.el) Settings ;;;;;;;;;;;;;;;;;;;
(setq org-export-with-author nil
      org-export-with-creator nil
      org-export-with-date nil
      org-export-with-archived-trees nil
;      org-export-headline-levels nil
)


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; My custom LaTeX class for Org-mode export. require is needed for it 
to work.
(require 'ox-latex)

(setq org-latex-title-command nil
      org-latex-toc-command nil
;     org-latex-with-hyperref nil
      org-latex-tables-centered nil
      org-export-with-date nil
      org-export-with-author nil
      org-export-with-creator nil
      org-export-with-archived-trees nil
      org-export-headline-levels nil
;     org-latex-hyperref-template "\\hypersetup{}"
      org-latex-hyperref-template ""
)

What am I missing?

Thanks,

Charlie Millar