cfwindow

Hello All,
I have this very simple code to show a pop up window using cfwindow:

<cfajaximport tags = "cfwindow">
<cfwindow initshow="true"  x="200" y="200">
this is cfwindow contents
</cfwindow>

It supposes to show a pop up window with the words say "this is cfwindow contents".
BUT I only see "this is cfwindow contents", there is no pop up window, and it gives me NO error, I think it has something to do with css.
I have spent a day to debug it but I  don't have any luck.
Since it not gives me any error message
I wonder if anyone out there has the same issue
Thank you
HP
pham_mn@yahoo.com