[XeTeX] fontspec.sty- xelatex: GUI framework cannot be initialized.

[Harish Kumar Holla]

Hi All,
Recently I tried to give a hand to XeLaTeX. But I am not able to compile
with xelatex.. This is my file:
===========================================
\documentclass[11pt]{article}
\usepackage{xltxtra}
\setmainfont[Mapping=tex-text]{Arial}
\begin{document}
\section{Unicode support}

\subsection{English}
All human beings are born free and equal in dignity and rights.


\end{document}
==========================================
When I compile with xelatax it says

===============================================
*("C:\Program Files\MiKTeX 2.9\tex\latex\fontspec\fontspec.sty"  xelatex:
GUI framework cannot be initialized.*

Xelatex failed to create a pdf file.....
===========================================================

What may be wrong? Please help.
I use winedt6 (15032011), in windows 7 Home premium (sp 1) and MikTeX 2.9.
Any suggestions from experts will be appreciated
-- 



--with regards

Dr. Harish Kumar
Dept. of Physics
Pondicherry Engineering College
Puducherry 605 014
Ph: 0413 2655281-286 (Extn: 646)

Residence:
Dr. Harish Kumar
# 29 (New No.) I Main Cluny Road
Avvai Nagar, Lawspet
Puducherry 605 008
Ph: 0413 2253652, 9443052957
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