Something seems to have gone wrong with my FM 8 installation.
FM 8 is no longer generating PDFs with bookmarks for the Acrobat (v9)
I recall the problem started when I was using FM 7.2 on a different PC, but
had to uninstall Acrobat v9 due to a licensing issue, and then instead
installed Acrobat 5, which I own. The problems then started on that PC. And
when I copied the book to the current PC (with FM 8 + Acrobat 9) then the
whole installation stopped creating bookmarks, whichever book I was using.