Just a comment on that

- If you select a range with two columns and use it as the source with the
ActiveChart.ChartWizard method, for an xlXYScatter chart, you'll get two
series, while you had one previously (and that was LOGICAL).

- If you set Categorylabels:=True, SeriesLabels:=False, and if the first
category is empty, Excel 2007 decides that in fact, SeriesLabels is true. Why
that, no clue. It wasn't so before. And it was better before because it was
so before.

In fact, that's the same problem as above. Then it forces to consider
serieslabels as true.