Can't see the widget in Live view in Dreamweaver CS4 for Mac

Hi

Following this example in http://www.truveo.com/Web-Widgets-in-Dreamweaver-CS4/id/180144024212823976

from Scott Fegette to place a YUI Calendar inside a project in Dreamweaver CS4. I see that Scott after placing the YUI_Calendar.mxp they got the calendar in Live view mode and I can't do the same, can't see in Live View, only a blank page.

I follow all the Scott's instructions correctly because the code is there and I can see the calendar in the browser but not in Live View... If I turn off the Live View then can see the YUI Calendar in Design View only (a light blue tag named YUI_calendar).

I'm under Mac OS X 10.5.6.

Can you help me to see the YUI Calendar in Live View?

Thanks.
Tom