[pstricks] ylabelPos and overfull boxes

[Adam Fenn]

When I run the example below under plain TeX the command ylabelPos=right produces overfull boxes.

%------------------ Plain TeX--------------------
\input pst-plot.tex
\input pstricks-add.tex

\pspicture(1,5) 
 \psaxes[xAxis=false,linecolor=red,ylabelPos=right]{->}(0.5,0)(0.5,5) 
 \endpspicture 
\bye
%--------------------------------------------------

However, if I run a LaTex version everything is as it should be.
As the LaTex version works I asume that I have all the correct files.
What am I doing wrong?
 
%------------------ LaTeX------------------------
\documentclass{article}
\usepackage{pst-plot}
\usepackage{pstricks-add}

\begin{document} 
  \begin{pspicture}(1,5) 
  \psaxes[xAxis=false,linecolor=red,ylabelPos=right]{->}(0.5,0)(0.5,5) 
  \end{pspicture} 
  \end{document}
%-------------------------------------------------

Thanks for your help,
Adam.

_________________________________________________________________
With Windows Live, you can organise, edit, and share your photos.
http://clk.atdmt.com/UKM/go/134665338/direct/01/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://tug.org/pipermail/pstricks/attachments/20090619/6e44264a/attachment.html>