# non centered slides with Prosper [closed]

I use MixTeX 2.9 with Windows. I have a problem when compiling with the Prosper document class. My code begins as follows:

\documentclass[pdf,distiller]{prosper}
\usepackage{amsmath}
\usepackage{Sweave}
\usepackage{xkeyval}
\title{Multiple Response Optimization}
\subtitle{}
\author{St\'ephane Laurent}

\begin{document}

...


I compile with 1) latex, 2) dvips, and 3) ps2pdf. In the pdf file the slide is not well centered:

I have tried several options with dvips but nothing changes.

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The prosper class and its companion patching package HA-prosper are no longer maintained, as far as I know; the authors recommend to use powerdot instead. –  Gonzalo Medina Sep 12 '12 at 2:32
Right, and I have finally switched to powerdot. –  Stéphane Laurent Sep 12 '12 at 5:17