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Thanks for your reply. However, I still cannot run powerdot , could you please help me?
\documentclass{powerdot}

\begin{document}
\begin{slide}{a slide}
Contents of the slide.
\end{slide}
\section{first section}
\begin{slide}[<slide options>]{another slide}
Contents of the slide.
\end{slide ...

I tried to use prosper to make a presentation. Here is a simple template I tried:
\documentclass[a4paper,pdf]{prosper}

\begin{document}
\begin{slide}{Starting slide}
show me something;
\end{slide}
\end{document}
However, error occurred
! Class prosper Error: unknown Prosper style file ...