Web scheduler updating Appoinments from database in Visual Studio but not working on production Server

I am using Web Scheduler for ASP.Net 2.0. I am using SQL Sever for data storage. When I am running application for testing in Visual Studio it works fine. However, when I am uploading it on server it does not work correctly.

 Problem is that when I am adding an appointment it does not update it on control until I refresh the page. AutoPostback and  AutoCallback properties are set to True.

Any Ideas???