Private Sub Worksheet_Change(ByVal Target As Range)
Const WS_RANGE As String = "A:A"
Dim sh As Worksheet

   On Error GoTo ws_exit:
   Application.EnableEvents = False
   If Not Intersect(Target, Me.Range(WS_RANGE)) Is Nothing Then
       With Target
           If .Value <> "" Then
               On Error Resume Next
               Set sh = Worksheets(.Value)
               On Error GoTo 0
               If sh Is Nothing Then
                   Worksheets.Add(after:=Worksheets(Worksheets.Count)).Name
= .Value
                   Me.Activate
               End If
           End If
       End With
   End If

ws_exit:
   Application.EnableEvents = True
End Sub

'This is worksheet event code, which means that it needs to be
'placed in the appropriate worksheet code module, not a standard
'code module. To do this, right-click on the sheet tab, select
'the View Code option from the menu, and paste the code in.

thanks,

the '=.Value'  area is giving me a compile error however?