Error in MSAccess when trying to send mail thru outlook in office 2007

Hi there

I am getting an "Application defined or Object defined error"  when I try and send mail from MS Access 2003 thru Outlook in Office 2007.  This procedure works fine in 2003 but does n ot want to work in 2007.  I have checked all the paramaters being parsed to the code and everything is there.

Your help will be greratly appreciated
Tx Al
 

Dim blRet As Boolean, AccName, AccMail As String
        AccName = DLookup("ACName", "Clients", "ClientID=" & Me.ClientId)
        AccMail = DLookup("ACEmail", "Clients", "ClientID=" & Me.ClientId)
        blRet = ConvertReportToPDF("Invoice", vbNullString, "C:\database\Invoice No." + Str(Me.InvoiceId) + ".pdf", False, False, 0, "", "", 0, 0)
        SendMessageOA True, "Datatrix Invoice Number " + Str(Me.InvoiceId), "Dear " & AccName & "," & Chr(13) & Chr(10) & Chr(13) & Chr(10) & "Please find attached the abovementioned invoice for your perusal." & Chr(13) & Chr(10) & Chr(13) & Chr(10) & "Kind Regards," & Chr(13) & Chr(10) & "Carol Longhurst", AccMail, , , "C:\database\Invoice No." + Str(Me.InvoiceId) + ".pdf"
 
End Sub
Sub SendMessageOA(ByVal bDisplayMsg As Boolean, _
                  ByVal sSubject As String, _
                  ByVal sMsgBody As String, _
                  ByVal sEmailTo As String, _
                  Optional ByVal sCCTo As String = "", _
                  Optional ByVal sBCCTo As String = "", _
                  Optional ByVal sAttachmentPath = "")
          
        Dim objOutlook As Object
        Dim objOutlookMsg As Object
        Dim objOutlookRecip As Object
        Dim objOutlookAttach As Object
        Dim IndCheck As Boolean

    
    ' Create the Outlook session.
    Set objOutlook = CreateObject("Outlook.Application")
    
    ' Create the message.
    Set objOutlookMsg = objOutlook.CreateItem(0)
    
    With objOutlookMsg
        
        ' Add the To recipient(s) to the message.
        Set objOutlookRecip = .Recipients.Add(sEmailTo)
'        objOutlookRecip.Type = sEmailTo
        
        ' Add the CC recipient(s) to the message.
        If sCCTo <> "" Then
            Set objOutlookRecip = .Recipients.Add(sCCTo)
'            objOutlookRecip.Type = sCCTo
        End If
        
        ' Add the BCC recipient(s) to the message.
        If sBCCTo <> "" Then
            Set objOutlookRecip = .Recipients.Add(sBCCTo)
'            objOutlookRecip.Type = sBCCTo
        End If
        
        ' Set the Subject, Body, and Importance of the message.
        .Subject = sSubject
        .Body = sMsgBody
        '.Importance = olImportanceHigh  'High importance
        
        ' Add attachments to the message.
        If sAttachmentPath <> "" Then
            Set objOutlookAttach = .Attachments.Add(sAttachmentPath)
        End If
        ' Resolve each Recipient's name.
        For Each objOutlookRecip In .Recipients
            objOutlookRecip.Resolve
        Next
        
        ' Should we display the message before sending?
        If bDisplayMsg Then
            .Display
        Else
            .Save
            .Send
        End If

    End With
    Set objOutlook = Nothing
End Sub