Sum of more than one pivot table

[Ken]

I am working with trying to sum 2 pivot tables.
I keep getting extra rows, one named "ROW" with a value
of "0" (Zero). I can remove this item from the drop down
list but ......
Why is it there?
And what can I do to get rid of it?

Ken

 

[Ken]

I should have said, I am trying to do this in a new pivot
table.

Ref: http://edferrero.m6.net/Pivot.html#4
The last part of this tutorial, says to sum the 2 pivot
tables.