[texhax] pst-barcode with pdflatex

[Reynolds Carl (ROYAL FREE HAMPSTEAD NHS TRUST)]

Hi, I'm trying to build this QR code example:

\documentclass{article}
\usepackage{pst-barcode}
\begin{document}
  \begin{pspicture}(1in,1in)
    \psbarcode{test string}{}{qrcode}
  \end{pspicture}
\end{document}

I get this error:

! Undefined control sequence.
<recently read> \c at lor@to at ps

l.5     \psbarcode{test string}{}{qrcode}

So far I've tried updating my pstricks and pst-barcode packages and checking the files used from the log against the list previously provided on this mailing list.

*File List*
 article.cls    2005/09/16 v1.4f Standard LaTeX document class
  size10.clo    2005/09/16 v1.4f Standard LaTeX file (size option)
pst-barcode.sty    2006/07/23 package wrapper for pst-barcode.tex (hv)
pstricks.sty    2008/11/26 v0.40 LaTeX wrapper for `PSTricks' (RN,HV)
pstricks.tex    2009/05/19 v1.29 `PSTricks' (tvz,hv)
pstricks.pro    2009/01/30 v. 1.06, PostScript prologue file (hv)
pst-dots.pro    2006/12/19 v. 2.00, PostScript prologue file (hv)
pst-algparser.pro    2008/01/01 v. 0.01, PostScript prologue file (hv)
  xcolor.sty    2007/01/21 v2.11 LaTeX color extensions (UK)
   color.cfg    2007/01/18 v1.5 color configuration of teTeX/TeXLive
   dvips.def    1999/02/16 v3.0i Driver-dependant file (DPC,SPQR)
pst-barcode.tex    2009/08/12 v0.07 `PST-barcode' (hv)
pst-xkey.tex    2005/11/25 v1.6 PSTricks specialization of xkeyval (HA)
 xkeyval.sty    2008/08/13 v2.6a package option processing (HA)
 xkeyval.tex    2008/08/13 v2.6a key=value parser (HA)
pst-barcode.pro    2009/08/12 PostScript prologue file (hv)

I can post my log file or part of it if this is helpful.

Many thanks, Dr Carl Reynolds








********************************************************************************************************************

This message may contain confidential information. If you are not the intended recipient please inform the
sender that you have received the message in error before deleting it.
Please do not disclose, copy or distribute information in this e-mail or take any action in reliance on its contents:
to do so is strictly prohibited and may be unlawful.

Thank you for your co-operation.

NHSmail is the secure email and directory service available for all NHS staff in England and Scotland
NHSmail is approved for exchanging patient data and other sensitive information with NHSmail and GSi recipients
NHSmail provides an email address for your career in the NHS and can be accessed anywhere
For more information and to find out how you can switch, visit www.connectingforhealth.nhs.uk/nhsmail

********************************************************************************************************************