[GLLUG] postscript document

[Julie Code]

Hey guys,
          It's been pretty quiet around here lately. =) I have asked some 
people on #latex about this, and I know a couple of you have had experience 
with LaTeX.  So sorry for posting off topic but if anyone has any idea if 
they could fix my problem, let me know.  I am trying to insert a jpeg file 
into latex. And I am having a heck of a time, been tryinig for hours all 
kinds of stuff and keeps on spitting out the same error message to me.  Here 
is what I type in

\begin{figure}[tbp]
\centering
\includegraphics[width=\columnwidth]{/home/julie/im004704.jpg}
\caption{Figure 1.1}
\end{figure}

here is what I get as output:


! LaTeX Error: Cannot determine size of graphic in /home/julie/im004705.jpg 
(no
BoundingBox).

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
...

l.70 ...th=\columnwidth]{/home/julie/im004705.jpg}


Well if anyone has the slightest idea what is going on let me know.

julie