Problem with a XY plot

Hi,

I am trying to plot a XY anomaly plot. I am getting the plots perfectly
but if I put these two resources:

  res@gsnAboveYRefLineColor = "red"
  res@gsnBelowYRefLineColor = "blue"

  I am getting error message saying:

fatal:Dimension sizes on right hand side of assignment do not match
dimension sizes of left hand side
fatal:Execute: Error occurred at or near line 101 in file
$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl

fatal:Execute: Error occurred at or near line 4481 in file
$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl

fatal:Execute: Error occurred at or near line 248 in file ts_CAI_x3.ncl

Here is the part of my code with resources and the plotting:

;************************************************
; plotting parameters
;************************************************
   nVar = 6
   plot = new ( nVar, "graphic")

   wks = gsn_open_wks ("x11","cai_ano")
   gsn_define_colormap(wks,"BlAqGrYeOrReVi200")

   res = True ; plot mods
desired

   res@xyDashPattern = 0 ; Make curves all solid
   res@xyMarkLineMode = "Lines" ; Markers *and* lines
   res@xyLineColors = (/"black","red"/) ; 3 different colors

   res@gsnDraw = False
   res@gsnFrame = False
   res@gsnYRefLine = (/ 0 /)
   res@gsnAboveYRefLineColor = "red" ; above ref line fill
red
   res@gsnBelowYRefLineColor = "blue" ; below ref line fill
blue

;*************************************************
; Panel the plots
;*************************************************
   resP = True
   resP@txString = ""

   resP@gsnPanelFigureStrings =
(/"NA","NP","EUA","NAM","ARM","ARO"/)

   plot(0) = gsn_csm_xy (wks,year,cai_na,res) ; create plot
   plot(1) = gsn_csm_xy (wks,year,cai_np,res) ; create plot
   plot(2) = gsn_csm_xy (wks,year,cai_eua,res) ; create plot
   plot(3) = gsn_csm_xy (wks,year,cai_nam,res) ; create plot
   plot(4) = gsn_csm_xy (wks,year,cai_arm,res) ; create plot
   plot(5) = gsn_csm_xy (wks,year,cai_aro,res) ; create plot

   resP@gsnMaximize = True

   gsn_panel(wks,plot,(/3,2/),resP)

  Can anybody please tell me what is going wrong if I put those two
resources in my code?

Thanks,
Soumik

-- 
"Numbing the pain for a while will make it worse when you finally feel 
it.
  ~J.K. Rowling"
*****************************************
Soumik Basu
Graduate Student, Research Assistant
International Arctic Research Center
University of Alaska Fairbanks
Fairbanks,Alaska,USA
*****************************************
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