[pstricks] xelatex doesn't like clipping

[Hensh, Richard]

Hi,

Actually, the subject should read ``xdvipdfmx doesn't like clipping''. 

The minimal example below compiles with the following error message. 

-------------Error Message issued by xdvipdfmx -------------------------------

<AGL:texglyphlist.txt>[1(Image:C:/Users/.../AppData/Local/Temp/mik4454.tmp[C:/
Users/.../AppData/Local/Temp/mik4454.tmp][PDF],Page:1)
** WARNING ** Error while parsing PDF file.
** WARNING ** Failed to parse the clipping path.
** WARNING ** Interpreting special command PST: (ps:) failed.
** WARNING ** >> at page="1" position="(318.791, 547.009)" (in PDF)
** WARNING ** >> xxx "PST: tx at Dict begin /mtrxc CM def CP CP T STV newpath /Arro
wA { "
Current input buffer is -->PST: tx at Dict begin /mtrxc CM def CP CP T STV newpa...
<--
(Image:C:/Users/.../AppData/Local/Temp/mik4996.tmp[C:/Users/.../AppData/Loca
l/Temp/mik4996.tmp][PDF],Page:1)]
Compression saved 586 bytes. Try "-V 5" for better compression
2042 bytes written
** WARNING ** 7 memory objects still allocated

-------------Minimal Example---------------------------------------------------------
\documentclass[10pt]{article}
\usepackage{pstricks-add}
\pagestyle{empty}
\begin{document}
\def\xmin{-6}\def\xmax{6}
\def\ymin{-6}\def\ymax{6}
\begin{pspicture}(\xmin,\ymin)(\xmax,\ymax)
\psclip{\psframe(\xmin,\ymin)(\xmax,\ymax)}%
    \psplot{\xmin}{\xmax}{x dup mul}%
\endpsclip
\end{pspicture}
\end{document}
-----------------------------------------------------------------

No clipping is performed. 

I'm running MikTeX 2.8 with all components updated. Any suggestions?

thanks
rick