[pstricks] Problem with pst-pdf

[Paul Smith]

Dear All

I get the following error when running the latex command on the document below:

(/usr/share/texmf/tex/latex/graphics/pdftex.def) (./pst-pdf.cfg)) (./lixo.aux)
Preview: Fontsize 10pt
)
! Incomplete \iffalse; all text was ignored after line 9.
<inserted text>
                \fi
<*> lixo.tex

If I remove the line

\usepackage{pst-pdf}

then, the problem disappears.

Any ideas?

Thanks in advance,

Paul

------------------------------------------

\documentclass{article}

\usepackage{pst-pdf}
\usepackage{pstricks,pst-plot,pstricks-add}

\begin{document}
\psplot[algebraic=true,plotpoints=200]{0}{5}{x^(1/3)}
\end{document}

 *File List*
  article.cls    2004/02/16 v1.4f Standard LaTeX document class
  size10.clo    2004/02/16 v1.4f Standard LaTeX file (size option)
pstricks.sty    2004/05/12 v0.2l LaTeX wrapper for `PSTricks' (RN,HV)
pstricks.tex    2005/08/13 v1.10 `PSTricks' (tvz)
  xcolor.sty    2004/07/04 v2.00 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)
pst-plot.sty    2004/07/15 package wrapper for pst-plot.tex
pst-plot.tex    2004/05/18 1.41 `pst-plot' (tvz)
pstricks-add.sty    2005/03/03 package wrapper for pstricks-add.tex (hv)
pstricks-add.tex    2005/08/06 v2.59 `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)
 ***********