+ now using png for pics in pdf docs

docs/user.tex

@@ -233,14 +233,14 @@ The screen of the installation program looks like figure \ref{fig:install}.
 \caption{The \dos install program screen.}
 \label{fig:install}
 \ifpdf
-\epsfig{file=pics/install1.pdf,width=\textwidth}
-%\epsfig{file=pics/install.pdf,width=\textwidth}
+\epsfig{file=pics/install1.png,width=\textwidth}
+%\epsfig{file=pics/install.png,width=\textwidth}
 \end{figure}
 \begin{figure}
 \caption{The \dos install program screen.}
 \label{fig:installb}
-\epsfig{file=pics/install2.pdf,width=\textwidth}
-%\epsfig{file=pics/install2s.pdf}
+\epsfig{file=pics/install2.png,width=\textwidth}
+%\epsfig{file=pics/install2s.png}
 \else
 \epsfig{file=pics/install1.eps,width=\textwidth}
 \epsfig{file=pics/install2.eps,width=\textwidth}