href not working in beamer (not clickable)

I have a beamer presentation and I would like to include a beamer presentation. the label from \href shows on the screen, but not as a link and it is not clickable. Same thing happens with \url.

Reduced example:

\documentclass{beamer}
\usepackage[utf8]{inputenc}
\usepackage{default}
\usepackage{pgfplots}
\usepackage{pgfplotstable}
\usepackage{verbatim}
\usepackage{booktabs}
\usepackage{pdfpages}
\usepackage{hyperref}

\begin{document}
\begin{frame}
\frametitle{Historic data}
\begin{itemize}
\item Evolution over time $\rightarrow$ \href{http://drupalfun.com/dance/index.html}{Time machine}
\end{itemize}
\end{frame}
\end{document}

• It looks rather incomplete than reduced. – percusse Jun 14 '13 at 22:31
• I elaborated a bit more, I hope it is more clear now. – dorien Jun 14 '13 at 22:42
• I have to comment out the \usetheme to be able to compile your code. But the hyperlink is clickable and takes me to the right web address. Maybe it's the theme you're using that's causing the problem? Try switching to a different theme or investigate the theme you're using and see if the problem persists. – Herr K. Jun 14 '13 at 23:11
• The problem may stem from your viewer rather than from your code. Have you tried opening the output in another viewer? Is the problem still present there? – jub0bs Jun 15 '13 at 8:01
• Thanks for your suggestions. It didn't work in ocular and acroread. Turn out I had the selection tool on instead of browsing tool in both softwares. Works now! – dorien Jun 15 '13 at 8:45