Article ID: 972985
This article applies to the following product:
In Microsoft Office Communications Server 2007 R2, Group Chat Administration Tool, you drag-and-drop a chat room from one category to another category. When the destination category is out of view, dragging a chat room to the upper or lower edge of the hierarchical category display should cause the display to scroll. However, in this scenario, automatic scrolling does not occur. Therefore, you cannot move the chat room to the category that is out of view.
To resolve this problem, apply the following update:
(http://support.microsoft.com/kb/969817/ )Description of the update for the Office Communications Server 2007 R2 Group Chat Administration Tool: July 2009