Dumping data into Excel from VB - How do I position the "Chart object"??

I have the following procedure which works quite well. To cut a long story short, oXL is a global excel object, I read a lot of numbers into arrays, dump them onto an excel sheet, send in the row and offset to the following function and it creates the chart. I do this about 6 times. So I have 6 blocks of data on a sheet with a chart associated with each block.
So far so good. My problem is that all the charts are on top of each other and I have to manually move them every time the sheet is created. How do I position the chart by code. I tried the move method but it failed with a run time error 1004:


Sub DoGraph(ByVal nSheet As Long, ByVal nRow As Long, ByVal nRowOffset As Long, _
            ByVal sTitle As String)
   
    Dim oChart As Excel.Chart
    Dim oSheet As Excel.Worksheet
    Dim oRange As Excel.Range
    Dim sAdd1 As String
    Dim sAdd2 As String
   
   
    Set oSheet = Sheets(nSheet)
   
    '
    ' set up range address
    '
    '
    sAdd1 = CStr(oSheet.Cells(nRow, 1).Address)
    sAdd2 = CStr(oSheet.Cells(nRow, 1).Offset(-nRowOffset, g_objProject.LastYear).Address)
   

    Set oRange = oSheet.Cells()
   
   
    Set oChart = oXL.ActiveWorkbook.Charts.Add
   
    oChart.Activate
   
    oChart.ChartType = xlAreaStacked
   
    oChart.SetSourceData oSheet.Range(sAdd1 & ":" & sAdd2), PlotBy:=xlRows
    oChart.Location Where:=xlLocationAsObject, Name:=oSheet.Name
   

    oXL.ActiveChart.HasTitle = True
    oXL.ActiveChart.ChartTitle.Text = sTitle
End Sub