[Gnuplot-info] Missing $ when using epslatex terminal---Please advise

[Jeremy C. <jer...@gm...>]

I am using the epslatex terminal so I can include figures in my LaTeX
document.  But I am getting an error message from LaTeX under some
conditions.
I have attached a minimal example hoping someone can assist me.  I have two
gnuplot figures included in this LaTeX file, one of them I am just plotting
the simple "test" command.  There, everything works fine.  The second figure
is a real world example.  I am plotting data from a file and I am fitting
that data to a line.  When I run latex on this example I get the error
message copied at the bottom of the email.  Is this a bug or is it something
I have done wrong?

Thanks in advance,
Jeremy

$ latex example.tex
This is pdfTeXk, Version 3.1415926-1.40.9 (Web2C 7.5.7)
 %&-line parsing enabled.
entering extended mode
(./example.tex

<<< SNIP >>>

(./Data_eps.tex <Data_eps.eps>
! Missing $ inserted.
<inserted text>
                $
l.109     \gplfronttext

?