How do I group new pivottable data w/old data instead of 5/31/08
 

I have a pivot table report that shows sales by month. I update it with new
data monthly. My problem is that the newest month is showing up under the
title heading 5/31/2008 instead of June. All of the other months have the
correct monthly title heading. This is annoying. Anybody know what's up?
craig