\begin{frame}{Mercurial for Windows: TortoiseHg}
  \begin{overprint}

  \onslide<1> Context menu in Windows Explorer:
  \begin{center}
    \includegraphics[width=0.5\textwidth]{thg-cmenu}
  \end{center}
  Overlay icons:
  \begin{center}
    \includegraphics[width=0.5\textwidth]{thg-overlay}
  \end{center}

  \onslide<2> Browsing history:
  \begin{center}
    \includegraphics[width=0.8\textwidth]{thg-history}
  \end{center}

  \onslide<3> Interactive commit tool:
  \begin{center}
    \includegraphics[width=0.8\textwidth]{thg-commit}
  \end{center}

  \onslide<4> Update with shelve option:
  \begin{center}
    \includegraphics[width=0.6\textwidth]{thg-update}
  \end{center}

  %\onslide<5> Launching the built-in Mercurial webserver:
  %\begin{center}
  %  \includegraphics[width=0.8\textwidth]{thg-serve}
  %\end{center}

  \onslide<5> Detecting renames based on file similarity:
  \begin{center}
    \includegraphics[width=0.8\textwidth]{thg-guess}
  \end{center}

  %\onslide<7> Editing the ignore list:
  %\begin{center}
  %  \includegraphics[width=0.8\textwidth]{thg-ignore}
  %\end{center}

  %\onslide<8> Sending patches as emails:
  %\begin{center}
  %  \includegraphics[width=0.8\textwidth]{thg-email}
  %\end{center}

  \end{overprint}

  \begin{tikzpicture}[remember picture, overlay]
    \node[below left=1.5em] at (current page.north east)
         {\includegraphics[height=2.5em]{thg}};
  \end{tikzpicture}
\end{frame}