display error in windows version grads-2.0.a5

[Raj Kumar Sharma]

I had downloaded grads-2.0.a5.oga.3-win32_superpack.zip 
ftom SourceForge.net.   I suppose that like earlier version grads1.9, 
I do not have to install cygwin and any other Xserver. However when I
run grads command, it shows X server error. I do not want to install
cygwin ot other Xserver. Is there any option? I am having Windows vista
Home editionRaj
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