DropDownList is busting my "MaintainScrollPosition..." !!!!

I'm using Master Pages on my site.

 I usually always use this attribute in my web.config to maintain scroll position after a postback: 

  <pages maintainScrollPositionOnPostBack="true">
   <controls>
...
   </controls>
  </pages>

 

On one ofthe pages I have a dynamic Drop Down List (DDL) that is tied to a LINQ data source:


<asp:DropDownList ID="ddlManufacturer" runat="server"
                                ondatabound="ddlManufacturer_DataBound" DataSourceID="LinqDataSource1"
               &n ...