Another Dilemma!

I have a dropdown list called (cboClaimant) on a form which obviously allows the user to choose claimants from the list. However, if the user chooses a new claimant that is not in the list, they have the oppertunity to add to list or continue without adding, which is fine but:

If they then attempt to merge with one of the word documents that are linked to the Db, the merge fails because it cannot recognise the newly entered claimant. Hope this makes sense and that someone out there can help! here is the code that is running behind the cbobox:

Private Sub CboClaimant_NotInList(NewData As String, Response As Integer)
Dim ctl As Control
Dim stDocName As String
' Return Control object that points to combo box.
Set ctl = Me!CboClaimant
Response = acDataErrContinue
' Prompt user to verify they wish to add new value.
If MsgBox("Claimant not in list. Do you wish to add new Claimant?", vbYesNo) = vbYes Then
' Set Response argument to indicate that data is being added.

stDocName = "frmClaimant"

DoCmd.OpenForm stDocName, acNormal, , , acFormAdd
Forms![frmClaimant]![txtClaimant] = NewData
Forms![frmClaimant]![txtClaimant].SetFocus
Else
' If user chooses No undo changes.
ctl = NewData
ctl.Requery

End If
Exit_cboname_NotInList_Click:
Exit Sub
Err_cboname_NotInList_Click:
MsgBox Err.Description
Resume Exit_cboname_NotInList_Click
Me.Refresh
End Sub