Using a Column chart. My Category groups are Month and Year, with Month being the inner group so that a three-letter abbreviation of the month is shown directly under the data column and the Year is beneath that set of months. However, the data columns start at a position on the left of the month tick mark (for the first month displayed) and gradually moves to the right of the month tick mark for the last month displayed. How does one center the columns directly above the month tick marks?? Thanks!--ACG