[pstricks] pst-pdf and pspicture's showgrid option

[Martin Buchmann]

Hi all,

I am having a problem using the showgrid option and the package pst-pdf.
The following works fine but if I want to use pdflatex via the pst-pdf 
package I do not get the grid.

Is this problem known od do I miss something?
   Martin

\listfiles
\documentclass{article}

\usepackage{pstricks-add}
% No grid is drawn wehn using this
\usepackage{pst-pdf}

\begin{document}

\begin{pspicture}[showgrid=true](-3,-3)(3,3)
   \pscircle[linecolor=green,fillstyle=solid,fillcolor=red](0,0){2.5}
\end{pspicture}

\end{document}

  *File List*
pst-pdf-test.tex
  article.cls    2005/09/16 v1.4f Standard LaTeX document class
   size10.clo    2005/09/16 v1.4f Standard LaTeX file (size option)
pstricks-add.sty    2005/03/03 package wrapper for pstricks-add.tex (hv)
pstricks.sty    2005/12/19 v0.31 LaTeX wrapper for `PSTricks' (RN,HV)
pstricks.tex    2005/12/22 v1.14 `PSTricks' (tvz)
   xcolor.sty    2005/12/21 v2.09 LaTeX color extensions (UK)
    color.cfg    2005/02/03 v1.3 color configuration of teTeX/TeXLive
    dvips.def    1999/02/16 v3.0i Driver-dependant file (DPC,SPQR)
pstricks-add.tex    2006/06/01 v2.75 `PSTricks-add' (hv)
pst-xkey.tex    2005/02/22 v1.5 PSTricks specialization of xkeyval (HA)
  xkeyval.sty    2005/08/12 v2.5d package option processing (HA)
  xkeyval.tex    2005/08/12 v2.5d key=value parser (HA)
pstricks-add.pro
  pst-pdf.sty    2005/06/29 v1.1i PS graphics for pdfLaTeX (RN,HjG)
graphicx.sty    1999/02/16 v1.0f Enhanced LaTeX Graphics (DPC,SPQR)
graphics.sty    2006/02/20 v1.0o Standard LaTeX Graphics (DPC,SPQR)
     trig.sty    1999/03/16 v1.09 sin cos tan (DPC)
graphics.cfg    2005/02/03 v1.3 graphics configuration of teTeX/TeXLive
  preview.sty    2005/04/03 preview-latex 0.9.1
prtightpage.def
   pdftex.def    2002/06/19 v0.03k graphics/color for pdftex
  pst-pdf.cfg    2005/05/20 v0.2 Automatically creation of EPS files (HV)
  ***********
-- 
What the fuck, over?