I couldn't get the ModalPopupExtender from the AJAX control toolkit to work so I made a new page with nothing else on it and I still can't get it to work. Am I missing something blatantly obvious?
Test.aspx
<%@ Page Title="" Language="VB" AutoEventWireup="false" CodeFile="test.aspx.vb" Inherits="test" %>
<!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" xml:lang="en">
<head id="Head1" runat="server">
<title>Test</title>
</head>
<body>
<form runat="server">
<asp:Button ID="BtnTest" runat="server" Text="Modal" />
<asp:ScriptManager ID="ScriptManager1" runat="server">
...
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