To work around this problem, verify that you have
		  connectivity to the Schema Master FSMO server. 
		  
			 For additional information about how to locate an FSMO role holder, click the
			 following article number to view the article in the Microsoft Knowledge Base: 
234790�
                            
 HOW TO: Find servers that hold Flexible Single Master Operations roles
 After you have established connectivity to the
		  Schema Master FSMO server, stop and then restart the Exchange 2003 installation
		  operation. To do this, follow these steps:
		  
- Right-click the taskbar, and then click Task
				Manager.
 - Click Microsoft Exchange Installation
				Wizard.
 - Click End Task.
 - Quit Task Manager.
 - Restart the Exchange 2003 installation.