SBS Remote Web Workplace Fatal Error

Running Windows SBS 2003.  We have been having problems with Remote Web Workplace.  You get the log in screen but when you log in the top frame says "Page cannot be displayed".  The main frame says "loading...".  

The event log has the following entry:
Event Type:      Error
Event Source:      SBS.RWW
Event Category:      None
Event ID:      0
Date:            5/30/2007
Time:            4:20:27 PM
User:            N/A
Computer:      server
Description:
The following fatal error occurred in the Remote Web Workplace application:
      URL:            https://****.mycompany.com/Remote/header.aspx
      Error Message:      An operations error occurred
      Stack Trace:         at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
   at System.DirectoryServices.DirectoryEntry.Bind()
   at System.DirectoryServices.DirectoryEntry.get_AdsObject()
   at System.DirectoryServices.DirectorySearcher.FindAll(Boolean findMoreThanOne)
   at System.DirectoryServices.DirectorySearcher.FindOne()
   at remote.RAPLinks.getCurrentUser()
   at remote.RAPLinks..ctor(HttpRequest httpRequest, HttpServerUtility httpServer, HttpSessionState httpSession)
   at remote.Global.getRAPLinks(HttpServerUtility httpServer, HttpSessionState httpSession, HttpRequest httpRequest)
   at remote.header.Page_Load(Object sender, EventArgs e)
   at System.Web.UI.Control.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain()



I have run CE-ICW multiple times with no effect.  

Any ideas on how to troubleshoot?