I have a ASP.Net 2005 web app that contains the AJAXControlToolkit CalendarExtender control. When clicking the associated ImageButton, the calendar should popup. This works great on my DEV(XP PRO) PC, but on my PROD Win2003 Server environment, the calendar does not display when the button is clicked. There is a yellow warning triangle that displays this when I click on it:"Object doesn't support this property or method".

My web.config files are identical on the DEV and PROD PCs. Also, other AJAX controls work on the PROD server such as ValidatorCalloutExtender.

How can I get the CalendarExtender control to work on my PROD server?

Thanks,

Jerry