Pie Chart Problems

[mdhoffman]

I'm new to iReport and I'm having problems creating a pie chart. I have a connection with the database and I'm bringing in two fields. These fields are displayed in the detail band and my pie chart is in the summary band. For the chart, my key expression is $F{BUSINESSAREA}, my value expression is $F{PERCENTAGE}, and my label expression is $F{BUSINESSAREA}. Those are my two fields. But all that is displaying in the report is the list of business areas and their percentages from the database and a gray box for the pie chart. Any help with this would be very much appreciated.