Slide shifted right

Hi,

my slices are shifted to the right when creating a pdf. Did someone find a
solution for this. I read that other had this problem too, but could not
find any solution. I'm using Ubuntu 8.04 and Kile to write LaTex. Here is a
part of my .tex file. Thank you for all help:

Sahit

\documentclass[a4paper,
ps,gyom,slideColor,colorBG,total,accumulate]{prosper}


\title{Image Annotation Process}
\author{Sahit Erdis}
\email{[email protected] <email%[email protected]>}
\institution{
\"{O}rebro University
}
\slideCaption{\LaTeX}
\begin{document}
\maketitle
\begin{slide}{Image Annotation?}
\begin{itemize}
 \item Label images.
 \item Extent of an image labeling can range from a flag telling whether the
object of interest is present or absent, to a full segmentation specifying
the object boundary.
\begin{center}
  \includegraphics[width=10cm]{MultipleGranularity.eps}
\end{center}
\end{itemize}
\end{slide}

...........

\end{document}
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