Aggregation cell is blank

HSMorales

I have a report with a table binded to a dataset. The dataset is populated via a stored procedure. I then inserted a grid under the table and binded it to the same dataset. I did this so I can display text labels and summary totals after a pagebreak without displaying the table header. The table displays data for customers from 4 possible catagories. The grid displays summary totals for the 4 catagories using an aggregation for each. However, when there is no data for a catagory the aggregation displayes a blank since there is no data for the catagory. How can I display a .00 if there is no data for the catagory ??

I am running BIRT 3.7.o

I appreciate all your help in the past.