I am re-posting this.

I have grouped my data based on the month. This is grouped based on the parameter date range. The problem is that when the group is displayed in the drill down (grouping) section in the report the months are sorted by the Month first and then by Year (3/2011, 3/2012 and so on) rather than by Year and then by Month (3/2011, 4/2011 and so on). Trying to customize the group header does not seem to make any difference.

Any help is appreciated.

Thanks