Fixed Header Scrolling problem

Dear,

I have create a table using datatable plugin, and use the Fixed Header Extra.
and put this table at div with [overflow : auto], when column exceeded the div width, it create a horizontal scroll,
when i uses this scroll to scroll table columns, columns does not move according to the scroll.

see this snapshot...
http://imageshack.us/photo/my-images/716/datatablescrollingprobl.jpg/

I need your help...

Thanks.