Using the code below I get an error when the program gets to export method.

The error is:
Ole Error Code 0x800A03EC
Unknown Com Status

Anyone know why this would occur? It draws the graph fine and I registered graph8.exe and all its dependencies using: graph8 /automation

 * Create the component
 pie = CREATEOBJECT("MSGraph.Chart.8")
 ds = pie.Application.DataSheet
 ds.Cells.Clear
 pie.Width = 500
 pie.Height = 500

 ds.Cells(1,2).Value = "TITI alain"
 ds.Cells(2,2).Value = "11,20"
 ds.Cells(1,3).Value = "vient gΘrard"
 ds.Cells(2,3).Value = "15"

 ds.Cells(1,4).Value = "TOTO FABRICE"
 ds.Cells(2,4).Value = "17"
 ds.Cells(1,5).Value = "EMILE CLAUDE"
 ds.Cells(2,5).Value = "19"
 ds.Cells(1,6).Value = "BERNARD BERNARD"
 ds.Cells(2,6).Value = "20"
 ds.Cells(1,7).Value = "TUTU ALAIN"
 ds.Cells(2,7).Value = "22"

 pie.ChartType = -4102
 pie.HasLegend = .T.
 pie.HasTitle = .F.
 pie.Legend.Font.Size = 8
 pie.Legend.AutoScaleFont = .T.
 pie.ApplyDataLabels
 pie.SeriesCollection(1).DataLabels.AutoScaleFont = .T.
 pie.SeriesCollection(1).DataLabels.Font.Size = 8
 pie.SeriesCollection(1).Interior.ColorIndex = 36
 pie.ChartArea.Interior.ColorIndex = 2
 pie.PlotArea.Width = 200
 pie.PlotArea.Height = 200

 tFile = "c:\pie.gif"
 pie.Export(tFile) && <-- Error occurs here