It seems that the file in on my Desktop was from an archived org folder,
from when the preview LaTeX snippets actually worked for me on a different
computer.

---------- Forwarded message ----------
From: Paul Burkander <paulburkander@gmail.com>
Date: Thu, Sep 24, 2009 at 8:15 PM
Subject: Problem with LaTeX snippets preview
To: emacs-orgmode@gnu.org


Hi all,

I'm having trouble viewing LaTeX snippets in org-mode.  I have dvipng
installed.

I entered the following test code:
\begin{equation}
\sqrt{5}+\frac{2}{3}
\end{equation}

and tried C-c C-x C-l

but then I only see an empty box where the png should be.  The messages
buffer reads:

Creating image...1
Loading latexenc...done
Failed to create dvi file from /tmp/orgtex608161G.tex
Creating image...done.  Use `C-c C-c' to remove images.
Cannot find image file `/home/paul/org/ltxpng/classes_0001.png' [53 times]
Temporary highlights/overlays removed from current buffer

There is no /tmp/orgtex608161G.tex that I can find.

Oddly, I had a file called "org" on my desktop, and it was putting png file
in there.  I got rid of that folder, thinking it was somehow confusing
things, and now I can't find any newly created png file.

help?  anyone?