I am using Crystal 7. I have a crosstab report that has customer and year in the row area, a formula which translates a period number(1,2,etc..) to a label(Jul,Aug,etc..) in the column area, and the sales quantity in the summarized field. The report summarizes all months in the Total column. I need to build it so it sums only sales for ... say Jan through Sep. This can allow me to compare Jan - Sep 2000 totals with Jan - Sep 2001 totals, and still display Oct - Dec 2000 month figures. How can I do this????