I have a very strange problem with chart objects.

I made a subroutine in which the chart object is made based on a range of
data.
I created the chart with the chartwizard method.
Then I want to change the font size and style of the chart title and of the
Y-axis (value axis).
This works fine as long as I run the subroutine separately on the sheet or
when I run it in debug mode (I set a breakpoint just before the creation)
However, in the complete execution of the program (in short,my program makes
smoe sheets and creates a chart from the data on a sheet), it sets the a
completely different size for the titles then the one I specify.
What is happening here? It seems like the program is ignoring my code.
Here is the code that I use:

ActiveChart.ChartWizard Source:=Range(Cells(3, 10), Cells(Li_RowCnt - 1,
17)), _
                        Gallery:=xlColumn, Format:=6, PlotBy:=xlColumns, _
                        categorylabels:=1, Serieslabels:=1, _
                        HasLegend:=1, Title:=As_Header, _
                        CategoryTitle:="", valuetitle:="Million " &
Gs_currency, extratitle:=""

ActiveChart.Axes(xlCategory).TickLabels.Orientation = -90

ActiveChart.ChartTitle.Font.Size = 16
ActiveChart.Axes(xlValue).AxisTitle.Font.Size = 10
ActiveChart.ChartTitle.Font.Color = RGB(0, 0, 255)

Only the labels and the color are set correctly.

Any help is greatly appreciated.

Johan Vanmol