Amanda Wang - MSFT
Hi,
Sorry, we did not repro your problem, below is our test master page, the scroll bar work fine at the render time:
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<div style="width:60%; height:100%; overflow:auto">
<asp:contentplaceholder id="ContentPlaceHolder1" runat="server"></asp:contentplaceholder>
</div>
</div>
</form>
</body>
</html>You can try to create a blank master page and create a new content page refer it, try to see whether it is working ok.
Hope it helps.
Thanks Amanda ... Image may be NSFW.
Clik here to view.
Helped A Lot ...