two axis chart 2003 Vs 2007
 

Just started to use Excel 2007 and without any changes in my spreadsheet, my
two axis charts that showed fine in 2003 show only the bars assigned to
primary axis. The secondary axis values show but no graph related to the
secondary axis shows. I went back to open same spreadsheet with Excel 2003
and everything is fine. What set-up do I need to change in 2007 to show graph
on two axis.
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Thanks