I'm using a ReportViewer in a SL3 application, identical to the TelerikTV tutorial, except that I'm placing the report in a RadWindow modal window that is resizeable by the user. In the ASPX file, I am able to set the width to 100%, but the Height cannot seem to be set to 100% in the ReportViewer. The issue is that I'm not able to get the vertical scrolling correct for the report in the RadWindow. I'm using the HtmlPlaceholder to house the report. The horizontal scrolling works great. It's the vertical scrolling that I can't get to work correctly.