Take a look at this MS KB article, it may help:
http://support.microsoft.com/support/kb/articles/q223/8/45.asp

Signature
Russ Valentine
[MVP-Outlook]
> When I open contacts in Outlook XP, I receive an error,
> Object doesn't support this property or
> method:'pageSBE.DataGrid1' Line No:11. Afterwards the
> contact opens and displays properly all data.
>
> Anyone know what this is and how to get rid of it?