>When viewing an ASP.NET Web Form, the .NET Designer and IE do not display a scroll bar when the page is larger than the height of the viewable area. Is this the normal behavior? The bottom portion of the form is a DataList control. Is it possible that the control is not telling the browser how tall it is?

This is at Desisgn time and run time, I take it? Are you in Flow Layout or Grid layout? My guess is that if you use Flow it should work like you expect.