Our good friends over at the filing cabinet have made us aware of an update you’ll want to apply if you use DFS Replication reporting :)

If you use the reporting functionality for DFS Replication in the DFS Management tools you will want to pick up the following hotfix to allow reporting functionality to work during the month of December:  http://support.microsoft.com/kb/912154. 

You do not need to pick up this hotfix if you do not use the reporting functions of the DFS Management tools.

Source: http://blogs.technet.com/filecab/archive/2006/11/27/end-of-year-maintenance-for-dfs-replication-reporting.aspx