We are in the process of removing a 2003 SBS from service we have gone through the steps that Demazter's Blog have outlined. Exchange is moved over, all services have been moved, all folders have been moved, we felt that were ready to move the active directory rolls to a 2008 Domain controller. For a litmus test we powered down the SBS server and a users were having trouble loading web pages once the web page was loaded it worked fine but they would have to refresh the page to get it loaded. Once we got it backup the problem went away. I am stuck as to what would be causing this issue.