[pmapper-users] Smooth Roads Problem

[Kusum]

Hii All

This problem may not be intended for this list
but I am new to mapserver , so pls help. 
I was getting broken kind of roads as in 1st picture below
To give it a smoother look I added antialias true to the style of roads using 
imagetype png24
OUTPUTFORMAT
  NAME png24
  DRIVER "GD/PNG"
  EXTENSION "png"
  MIMETYPE "image/png"
  IMAGEMODE RGBA
  TRANSPARENT OFF
  FORMATOPTION "QUANTIZE_FORCE=ON"
  FORMATOPTION "QUANTIZE_DITHER=OFF"
  FORMATOPTION "QUANTIZE_COLORS=256"
END
The roads looked smoother but the  colors of roads changed as in picture below 
      Antialias false 
     
      antialias true 
Please suggest something to resolve this.
Thanks in Advance

Regards
Kusum

<<2E7.jpg>>

<<2E8.jpg>>

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