I had a workbook of data with a number of graphs in one worksheet; each
graph series was populated by a named range (A_, B_, C_, D_, etc.). A_ was
the only direct (actually, indirect) reference, and the other series are all
offsets of A_

I had some new data in a new workbook, so I used the worksheet/copy/move
functionality to make a copy of the worksheet that contains the graphs in my
new workbook. I copied over the named ranges and re-set them in my new
workbook to the new data areas (and verified that they accurately point to
ranges of data- which they do). However, the 'new' graphs do not want to
accept the named ranges in the new workbook.

Workbook name: "v10.xls"

Named Range for the first graph= "A_" which worked fine in the old workbook

In the new workbook, I click on source data for the first graph and click
into the source data fields; just like with the old workbook, the only one
populated is Series1 as =v10.xls!A_ but when I click into the field and try
to close the graph, I get a "formula you typed contains an error" message.

Any ideas what I should troubleshoot?

Thanks,
Keith