[pstricks] mismatch between psaxes and psgrid

[Markus]

Hi!

There is a mismatch between psaxes and psgrid (y-coordinates do not match).

Here is the minimal example

\listfiles
\documentclass[11pt,DIV15]{scrartcl}
\usepackage{pstricks-add}
\begin{document}
\begin{pspicture}(-4,-5)(7,4)
\psgrid[subgriddiv=2,gridcolor=lightgray,gridlabels=0pt]
\psaxes{->}(0,0)(-4,-5)(7,4)%[$x$,270][$y$,0]
\end{pspicture}
\end{document}

  *File List*
scrartcl.cls    2007/12/24 v2.98 KOMA-Script document class (article)
scrkbase.sty    2007/12/24 v2.98 KOMA-Script package (basics and keyval use)
   keyval.sty    1999/03/16 v1.13 key=value parser (DPC)
scrlfile.sty    2007/12/18 v2.98 KOMA-Script package (loading files)
   size11.clo    2005/09/16 v1.4f Standard LaTeX file (size option)
typearea.sty    2007/12/24 v2.98 KOMA-Script package (type area)
pstricks-add.sty    2007/09/03 v. 0.11 package wrapper for 
pstricks-add.tex (hv)
pstricks.sty    2008/01/24 v0.37 LaTeX wrapper for `PSTricks' (RN,HV)
pstricks.tex    2008/06/17 v1.24 `PSTricks' (tvz)
   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)
pstricks-add.tex    2008/06/12 v3.05 `PSTricks-add' (hv)
pst-xkey.tex    2005/11/25 v1.6 PSTricks specialization of xkeyval (HA)
  xkeyval.sty    2006/11/18 v2.5f package option processing (HA)
  xkeyval.tex    2006/11/18 v2.5f key=value parser (HA)
  ***********

What am I expected to do?

Thanks for any help!

Markus