Exchange ActiveSync does not work

Exchange ActiveSync is not working on a Windows 2003 server running Exchange 2003 (both standard version).  We are getting an event 1503.  Here is the detail of the event:

An unknown error occurred while processing the current request:
Message: Index was out of range.  Must be non-negative and less than the size of the collection.
Parameter name: startIndex
Source: mscorlib
Stack trace:
   at System.Globalization.CompareInfo.IndexOfString(Void* pSortingTable, Int32 win32LCID, String source, String value, Int32 startIndex, Int32 count, Int32 options)
   at System.Globalization.CompareInfo.IndexOf(String source, String value, Int32 startIndex)
   at Microsoft.Exchange.OMA.Preferencing.AdUserObject.get_globalWirelessEnable()
   at Microsoft.Exchange.OMA.Preferencing.AdUserObject.get_UserIsWirelesslyEnabled()
   at Microsoft.Exchange.OMA.Preferencing.OmaUserInfo.get_UserIsWirelesslyEnabled()
   at Microsoft.Exchange.OMA.UserInterface.Global.Session_Start(Object sender, EventArgs e)

Message: Exception of type Microsoft.Exchange.OMA.DataProviderInterface.ProviderException was thrown.
UserMessage: A System error has occurred while processing your request. Please try again. If the problem persists, contact your administrator.
Source: Microsoft.Exchange.OMA.UserInterface
Stack trace:
   at Microsoft.Exchange.OMA.UserInterface.Global.Session_Start(Object sender, EventArgs e)
   at System.Web.SessionState.SessionStateModule.RaiseOnStart(EventArgs e)
   at System.Web.SessionState.SessionStateModule.CompleteAcquireState()
   at System.Web.SessionState.SessionStateModule.BeginAcquireState(Object source, EventArgs e, AsyncCallback cb, Object extraData)
   at System.Web.AsyncEventExecutionStep.System.Web.HttpApplication+IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

From what I have read on newsgroups, etc.  I am getting the impression that it is an AD related issue.  Any help with this is appreciated.
David BarmanAsked:
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Have a look a look at this, particularly powerbiz's post on how he resolved it.
David BarmanAuthor Commented:
yes, I saw that post.  However, the first link in his "solution" does not work and the second link I am not sure I understand.  Any guidance?
Try following the METHOD2 from;en-us;Q319886 

It may be much clearer.

The first link has been moved and the owner hasn't completed migration to the new site/domain.  I'll go through the archive.
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David BarmanAuthor Commented:
Ok.  This article does not seem to reference anything to do with Exchange ActiveSync.  How does it apply to my situation?

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David BarmanAuthor Commented:
Contacted Microsoft support to fix issue.  Not sure what they did to fix it.
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