Being a lerner at Vb, why do i get an error from the below ?

If the Combobox2.value = a value in Range(C159:C210) then i want a message to say so !!

Private Sub ComboBox2_Exit(ByVal Cancel As MSForms.ReturnBoolean)
Dim rng As Range
With Sheets("Scheduled In")
Set rng = Range("C159:C210")
If ComboBox2.Value = rng.Cells.Value Then '<== Error here
MsgBox "Already Used"
Else
MsgBox "Done"
End If
End With
End Sub


How do i write that line then?

CTM