[XeTeX] pstricks

[Yves Codet]

Hello.

I'm trying to do something very simple with "pstricks", without much 
success. I have:

	\usepackage[dvips]{pstricks}

in the preamble, and:

	\begin{pspicture}(0,0)(2,2)
	\psdots[linecolor=black,dotstyle=asterisk,dotscale=2](0,0)(0,2)(1,1)
	\end{pspicture}

in the document, and nothing but blank space in the output. Sorry about 
this newbie question but what did I miss?

Best wishes,

Yves