I have a stacked column chart that plots monthly sums by two concatenated date fields using datepart. Example: Jan 04, Feb 04, Mar 04 etc. It works great. When I do a calculation on each data field to change the data to a percentage, the x axis date labels get jacked. The first shows normal then every other one appears as zero: Jan 04, 0, 0, 0. I can either do only one datepart for the x axis, or not calculate the plotted data. Ideas?