ASP.Net/Response/Response Buffer
Turn off Response buffer (VB.net)
<%@ Page Language="VB" %>
<html>
<body>
<%
Dim i As Integer
For i = 1 to 50
Response.Write(" X")
Next
Response.Buffer = False
Dim i As Integer
For i = 1 to 50
Response.Write(" X")
Next
%>
</body>
</html>