\pdbookmark{sec.0.slide}{sec.0}{2}{Problem}
\pdbookmark{sec.0.slide}{sec.0}{3}{Contents}
\pdbookmark{sec.0.slide}{sec.0}{4}{Slide 1}
\pdbookmark{sec.0.slide}{sec.0}{5}{Introduction: Use it or Lose it\newline (and this is the last ``business-level'' slide)}
\pdbookmark{sec.1}{}{6}{First section}
\pdbookmark{sec.1.slide}{sec.1}{7}{Slide 2}
\pdbookmark{sec.1.slide}{sec.1}{8}{Slide 3}