Not tested, but this should work

Option Explicit

Private Sub Worksheet_Change(ByVal Target As Range)
Static prevValue

On Error GoTo ws_exit:
Application.EnableEvents = False
If Not Intersect(Target, Me.Range("K34")) Is Nothing Then
With Target
If .Value < prevValue Then
Select Case .Value
Case ""
Exit Sub
Case "60/40"
Sheets("Model Allocation Inputs").Select
Range("D25:D37").Copy
Sheets("60-40 Charts").Select
Range("F39").Select
ActiveSheet.Paste Link:=True
Case "80/20"
Sheets("Model Allocation Inputs").Select
Range("e25:e37").Copy
Sheets("60-40 Charts").Select
Range("F39").Select
ActiveSheet.Paste Link:=True
End Select
Else
prevValue = .Value
End If
End With
Me.Select
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.


--

HTH

RP
(remove nothere from the email address if mailing direct)


"Bob Phillips" wrote in message
...
Static prevValue
Dim model As String
Range("k34").Select
model = ActiveCell.Value
If model < prevValue Then
Select Case model
Case ""
Exit Sub
Case "60/40"
Sheets("Model Allocation Inputs").Select
Range("D25:D37").Copy
Sheets("60-40 Charts").Select
Range("F39").Select
ActiveSheet.Paste Link:=True
Case "80/20"
Sheets("Model Allocation Inputs").Select
Range("e25:e37").Copy
Sheets("60-40 Charts").Select
Range("F39").Select
ActiveSheet.Paste Link:=True
End Select
Else
prevValue = model
End If


--

HTH

RP
(remove nothere from the email address if mailing direct)


"Piwo" wrote in message
...
I have a cell that contains a drop down list. I want the macro to run if
the
list selection changes. For example: I currently selected 60/40 from the
list. If I select 60/40 again, there is obviously no need to re run the
macro. however, if I change the selection to 80/20 I would want to macro
to
run.

Clear? Thanks


Dim model As String
Range("k34").Select
model = ActiveCell.Value
Select Case model
Case ""
Exit Sub
Case "60/40"
Sheets("Model Allocation Inputs").Select
Range("D25:D37").Select
Selection.Copy
Sheets("60-40 Charts").Select
Range("F39").Select
ActiveSheet.Paste Link:=True
Case "80/20"
Sheets("Model Allocation Inputs").Select
Range("e25:e37").Select
Selection.Copy
Sheets("60-40 Charts").Select
Range("F39").Select
ActiveSheet.Paste Link:=True
End Select
End Sub