[pstricks] dimension too large with the new pst-plot

[Jean-Claude Dehaes]

Hello,

Since the latest version 1.28  of pst-plot, I get the following message
! Dimension too large.
<recently read> @psunit 

when compiling the file at the end of this message. With version 1.26 there was no error. 

thank you  in advance for your help

Jean-Claude

listfiles

documentclass{scrartcl}
usepackage{pst-plot,pstricks-add}


begin{document}


begin{psgraph}[axesstyle=frame,Dx=100,Dy=250,xticksize=0 2000,yticksize=0 1000](0,0)(1000,2000){10cm}{6cm}
listplot[linecolor=black,dotsize=1mm,plotstyle=dots,nEnd=250]{56.5   59.537 73  87 91.8  122.06 299 511 377 661.65 467 840 501 898 640 1173.2 699
1280 722 1332.5 975 1836}
psline(30.3727,0)(1000,1868.47)
end{psgraph}

end{document}

 *File List*
scrartcl.cls    2011/04/02 v3.09 KOMA-Script document class (article)
scrkbase.sty    2011/04/02 v3.09 KOMA-Script package (KOMA-Script-dependent bas
ics and keyval usage)
 scrbase.sty    2011/04/02 v3.09 KOMA-Script package (KOMA-Script-independent b
asics and keyval usage)
  keyval.sty    1999/03/16 v1.13 key=value parser (DPC)
scrlfile.sty    2011/03/09 v3.09 KOMA-Script package (loading files)
tocbasic.sty    2011/03/23 v3.09 KOMA-Script package (handling toc-files)
scrsize11pt.clo    2011/04/02 v3.09 KOMA-Script font size class option (11pt)
typearea.sty    2011/04/02 v3.09 KOMA-Script package (type area)
pst-plot.sty    2010/01/22 package wrapper for pst-plot.tex
pstricks.sty    2011/03/27 v0.49 LaTeX wrapper for `PSTricks' (RN,HV)
   ifpdf.sty    2011/01/30 v2.3 Provides the ifpdf switch (HO)
ifluatex.sty    2010/03/01 v1.3 Provides the ifluatex switch (HO)
pstricks.tex    2011/03/25 v2.19 `PSTricks' (tvz,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-fp.tex    2011/03/25 v2.19 `PST-fp' (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-plot.tex    2011/03/22 1.28 `pst-plot' (tvz,hv)
pstricks-add.sty    2010/02/11 v. 0.14 package wrapper for pstricks-add.tex (hv
)
pstricks-add.tex    2011/02/02 v3.51 `PSTricks-add' (hv)