diff --git a/create_account.html b/create_account.html
index a210ae4aca..56c45425df 100644
--- a/create_account.html
+++ b/create_account.html
@@ -1,3 +1,5 @@
+<!-- TODO: Add pattern field to username. See HTML5 cookbook, 
+     page 84 for details-->
 <div name="enroll_form" id="enroll_form">
 <form name="login"  method="get">
 <%
@@ -10,12 +12,12 @@
 style="color:red;"><div id="enroll_error"
 name="enroll_error"></div></td></tr>
 <tr><td align=right>E-mail</td><td><input name="email" id="ca_email"
-type="text"> </td><td></td></tr>
+type="email" required> </td><td></td></tr>
 <tr><td align=right>Password</td><td><input name="password"
-id="ca_password" type="password"> </td><td></td></tr>
+id="ca_password" type="password" required> </td><td></td></tr>
 
 <tr><td align=right>Public Name</td><td><input name="username"
-id="ca_username" type="text"> </td><td><span class="ui-icon ui-icon-help" id="spinner_nick" style="display:inline-block;"></td></tr>
+id="ca_username" type="text" required> </td><td><span class="ui-icon ui-icon-help" id="spinner_nick" style="display:inline-block;"></td></tr>
 <tr><td colspan=3 align=center><div style="display:none"
 id="sregion_nick">Nickname you'd like to use on forums. We recommend
 some variant of your real name (e.g. first name, last initial), but we
@@ -47,11 +49,11 @@ regions to focus on. </div></td></tr>
 
 <tr><td align=right><input name="terms_of_service"
 id="cb_terms_of_service" type="checkbox"
-value="terms_of_service"></td><td colspan=2>I agree to the Terms of
+value="terms_of_service" required></td><td colspan=2>I agree to the Terms of
 Service</td></tr>
 
 <tr><td align=right><input name="honor_code" id="cb_honor_code"
-type="checkbox" value="honor_code"></td><td colspan=2>I agree
+type="checkbox" value="honor_code" required></td><td colspan=2>I agree
 to:</td></tr>
 <tr><td colspan=3 align=center>
 <br>
diff --git a/login.html b/login.html
index 040f7b4418..5dea8835e4 100644
--- a/login.html
+++ b/login.html
@@ -4,8 +4,8 @@
 <table><tr><td>
 <form name="login" action="/login" method="get">
 <tr><td colspan=2 align=center><div id="login_error"></div></td></tr>
-<tr><td align=right>E-mail</td><td><input name="email" id="li_email" type="text"> </td></tr>
-<tr><td align=right>Password</td><td><input name="password" id="li_email" type="password">  </td></tr>
+<tr><td align=right>E-mail</td><td><input name="email" id="li_email" type="email" required> </td></tr>
+<tr><td align=right>Password</td><td><input name="password" id="li_password" type="password" required>  </td></tr>
 <!--tr><td align=right><input name="remember" type="checkbox" value="remember"></td><td>Remember me  </td></tr-->
 <tr><td align=right></td><td align=right><input name="submit" id="login_button" type="button" value="Log in">  </td></tr>
 </form>
diff --git a/problem.js b/problem.js
index 7dd3d6c4ce..f72d5b6276 100644
--- a/problem.js
+++ b/problem.js
@@ -2,6 +2,7 @@ function ${ id }_load() {
    $('#main_${ id }').load('${ ajax_url }problem_get?id=${ id }', 
       function() {
         MathJax.Hub.Queue(["Typeset",MathJax.Hub]);
+	update_schematics();
 
 	$('#check_${ id }').click(function() {
 	  var submit_data={};
diff --git a/video.html b/video.html
index c8b825a148..783c1b2ef0 100644
--- a/video.html
+++ b/video.html
@@ -1,5 +1,5 @@
 <table>
-  <tr><td rowspan=13 colspan=4>
+  <tr><td rowspan=14 colspan=4>
       <div id="ytapiplayer">
 	You need Flash player 8+ and JavaScript enabled to view this video.
       </div>
@@ -16,6 +16,7 @@
 <tr><td width=15><span class="" onclick="">&nbsp;</span></td><td colspan=2 id=stt_p4 align=center><div id=std_p4 onclick="title_seek( 4);">&nbsp;</div></td></tr>
 <tr><td width=15><span class="" onclick="">&nbsp;</span></td><td colspan=2 id=stt_p5 align=center><div id=std_p5 onclick="title_seek( 5);">&nbsp;</div></td></tr>
 <tr><td width=15><span class="" onclick="">&nbsp;</span></td><td colspan=2 id=stt_p6 align=center><div id=std_p7 onclick="title_seek( 6);">&nbsp;</div></td></tr>
+<tr><td></td><td colspan=2><img src="/static/pixel.jpg" width=400 height=0></td></tr>
 <tr><td></td></tr>
 
 <tr><td width=15><span class="ui-icon ui-icon-play" onclick="play();"></span></td>
@@ -23,3 +24,4 @@
                <td width=500 colspan=4><div id=slider></div></td></tr>
 </table>
 <div align=right>0.75x 1x 1.25x 1.5x </div>
+