diff --git a/courseware/capa_module.py b/courseware/capa_module.py
index 15c19432cd..b94ffac537 100644
--- a/courseware/capa_module.py
+++ b/courseware/capa_module.py
@@ -245,6 +245,10 @@ class LoncapaModule(XModule):
             correct_map = self.lcp.grade_answers(answers)
         except: 
             self.lcp = LoncapaProblem(filename, id=lcp_id, state=old_state)
+            print {'error':sys.exc_info(),
+                   'answers':answers, 
+                   'seed':self.lcp.seed, 
+                   'filename':self.lcp.filename}
             return json.dumps({'success':'syntax'})
 
         self.attempts = self.attempts + 1
diff --git a/settings.py b/settings.py
index 9abff2f6ca..be214e5987 100644
--- a/settings.py
+++ b/settings.py
@@ -125,7 +125,12 @@ LOGGING = {
     }
 }
 
-TRACK_DIR = None
+#TRACK_DIR = None
+DEBUG_TRACK_LOG = False
+# Maximum length of a tracking string. We don't want e.g. a file upload in our log
+TRACK_MAX_EVENT = 1000 
+# Maximum length of log file before starting a new one. 
+MAXLOG = 500
 
 execfile("../settings.py")
 
diff --git a/simplewiki/mdx_camelcase.py b/simplewiki/mdx_camelcase.py
old mode 100644
new mode 100755
index bf4e721860..3ec0c08fe2
--- a/simplewiki/mdx_camelcase.py
+++ b/simplewiki/mdx_camelcase.py
@@ -1,7 +1,5 @@
 #!/usr/bin/env python
 
-print "Hello"
-
 '''
 WikiLink Extention for Python-Markdown
 ======================================
@@ -69,6 +67,13 @@ Dependencies:
 '''
 
 import markdown
+try:
+    # Markdown 2.1.0 changed from 2.0.3. We try importing the new version first,
+    # but import the 2.0.3 version if it fails
+    from markdown.util import etree
+except:
+    from markdown import etree
+
 
 class CamelCaseExtension(markdown.Extension):
     def __init__(self, configs):
@@ -97,14 +102,14 @@ class CamelCaseExtension(markdown.Extension):
 class CamelCaseLinks(markdown.inlinepatterns.Pattern):
     def handleMatch(self, m) :
         if  m.group('escape') == '\\':
-            a = markdown.etree.Element('a')#doc.createTextNode(m.group('camelcase'))
+            a = etree.Element('a')#doc.createTextNode(m.group('camelcase'))
         else :
             url = m.group('camelcase')
                              #'%s%s%s'% (self.md.wiki_config['base_url'][0], \
                              #m.group('camelcase'), \
                              #self.md.wiki_config['end_url'][0])
             label = m.group('camelcase').replace('_', ' ')
-            a = markdown.etree.Element('a')
+            a = etree.Element('a')
             a.set('href', url)
             a.text = label
         a.set('class', 'wikilink')
diff --git a/simplewiki/mdx_circuit.py b/simplewiki/mdx_circuit.py
old mode 100644
new mode 100755
index 16e9bdd229..efac721b7c
--- a/simplewiki/mdx_circuit.py
+++ b/simplewiki/mdx_circuit.py
@@ -7,12 +7,16 @@ circuit:name becomes the circuit.
 '''
 
 import simplewiki.settings as settings
-import markdown
-from markdown import etree_loader
 
 from djangomako.shortcuts import render_to_response, render_to_string
 
-ElementTree=etree_loader.importETree()
+import markdown
+try:
+    # Markdown 2.1.0 changed from 2.0.3. We try importing the new version first,
+    # but import the 2.0.3 version if it fails
+    from markdown.util import etree
+except:
+    from markdown import etree
 
 class CircuitExtension(markdown.Extension):
     def __init__(self, configs):
@@ -26,18 +30,16 @@ class CircuitExtension(markdown.Extension):
         md.inlinePatterns.add(name, pattern, "<reference")
     
     def extendMarkdown(self, md, md_globals):
-        print "Here"
         self.add_inline(md, 'circuit', CircuitLink, r'^circuit:(?P<name>[a-zA-Z0-9]*)$')
 
 class CircuitLink(markdown.inlinepatterns.Pattern):
     def handleMatch(self, m):
         name = m.group('name')
         if not name.isalnum():
-            return ElementTree.fromstring("<div>Circuit name must be alphanumeric</div>")
+            return etree.fromstring("<div>Circuit name must be alphanumeric</div>")
 
-        return ElementTree.fromstring(render_to_string('show_circuit.html', {'name':name}))
+        return etree.fromstring(render_to_string('show_circuit.html', {'name':name}))
         
     
 def makeExtension(configs=None) :
-    print "Here"
     return CircuitExtension(configs=configs)
diff --git a/simplewiki/mdx_image.py b/simplewiki/mdx_image.py
old mode 100644
new mode 100755
index 7f74a07550..956641baa7
--- a/simplewiki/mdx_image.py
+++ b/simplewiki/mdx_image.py
@@ -16,7 +16,15 @@ Requires Python-Markdown 1.6+
 '''
 
 import simplewiki.settings as settings
+
 import markdown
+try:
+    # Markdown 2.1.0 changed from 2.0.3. We try importing the new version first,
+    # but import the 2.0.3 version if it fails
+    from markdown.util import etree
+except:
+    from markdown import etree
+
 
 class ImageExtension(markdown.Extension):
     def __init__(self, configs):
@@ -35,7 +43,7 @@ class ImageExtension(markdown.Extension):
 
 class ImageLink(markdown.inlinepatterns.Pattern):
     def handleMatch(self, m):
-        img = markdown.etree.Element('img')
+        img = etree.Element('img')
         proto  = m.group('proto') or "http://"
         domain = m.group('domain')
         path   = m.group('path')
diff --git a/simplewiki/mdx_mathjax.py b/simplewiki/mdx_mathjax.py
index bc25bace66..e694ca861e 100644
--- a/simplewiki/mdx_mathjax.py
+++ b/simplewiki/mdx_mathjax.py
@@ -1,8 +1,12 @@
 # Source: https://github.com/mayoff/python-markdown-mathjax
 
-print "Hello"
-
 import markdown
+try:
+    # Markdown 2.1.0 changed from 2.0.3. We try importing the new version first,
+    # but import the 2.0.3 version if it fails
+    from markdown.util import etree, AtomicString
+except:
+    from markdown import etree, AtomicString
 
 class MathJaxPattern(markdown.inlinepatterns.Pattern):
 
@@ -10,7 +14,9 @@ class MathJaxPattern(markdown.inlinepatterns.Pattern):
         markdown.inlinepatterns.Pattern.__init__(self, r'(?<!\\)(\$\$?)(.+?)\2')
 
     def handleMatch(self, m):
-        return markdown.AtomicString(m.group(2) + m.group(3) + m.group(2))
+        el = etree.Element('span')
+        el.text = AtomicString(m.group(2) + m.group(3) + m.group(2))
+        return el
 
 class MathJaxExtension(markdown.Extension):
     def extendMarkdown(self, md, md_globals):
diff --git a/simplewiki/mdx_video.py b/simplewiki/mdx_video.py
old mode 100644
new mode 100755
index fc8ddd126c..cc15e39a97
--- a/simplewiki/mdx_video.py
+++ b/simplewiki/mdx_video.py
@@ -128,6 +128,13 @@ u'<p><object data="http://www.gametrailers.com/remote_wrap.php?mid=58079" height
 """
 
 import markdown
+try:
+    # Markdown 2.1.0 changed from 2.0.3. We try importing the new version first,
+    # but import the 2.0.3 version if it fails
+    from markdown.util import etree
+except:
+    from markdown import etree
+
 
 version = "0.1.6"
 
@@ -229,7 +236,7 @@ class Yahoo(markdown.inlinepatterns.Pattern):
         width = self.ext.config['yahoo_width'][0]
         height = self.ext.config['yahoo_height'][0]
         obj = flash_object(url, width, height)
-        param = markdown.etree.Element('param')
+        param = etree.Element('param')
         param.set('name', 'flashVars')
         param.set('value', "id=%s&vid=%s" % (m.group('yahooid'),
                 m.group('yahoovid')))
@@ -244,20 +251,20 @@ class Youtube(markdown.inlinepatterns.Pattern):
         return flash_object(url, width, height)
 
 def flash_object(url, width, height):
-        obj = markdown.etree.Element('object')
+        obj = etree.Element('object')
         obj.set('type', 'application/x-shockwave-flash')
         obj.set('width', width)
         obj.set('height', height)
         obj.set('data', url)
-        param = markdown.etree.Element('param')
+        param = etree.Element('param')
         param.set('name', 'movie')
         param.set('value', url)
         obj.append(param)
-        param = markdown.etree.Element('param')
+        param = etree.Element('param')
         param.set('name', 'allowFullScreen')
         param.set('value', 'true')
         obj.append(param)
-        #param = markdown.etree.Element('param')
+        #param = etree.Element('param')
         #param.set('name', 'allowScriptAccess')
         #param.set('value', 'sameDomain')
         #obj.append(param)
diff --git a/simplewiki/models.py b/simplewiki/models.py
index 2d04299360..d549534659 100644
--- a/simplewiki/models.py
+++ b/simplewiki/models.py
@@ -247,7 +247,6 @@ class Revision(models.Model):
 
         # Create pre-parsed contents - no need to parse on-the-fly
         ext = WIKI_MARKDOWN_EXTENSIONS
-        print "Waka", WIKI_MARKDOWN_EXTENSIONS
         ext += ["wikilinks(base_url=%s/)" % reverse('wiki_view', args=('',))]
         self.contents_parsed = markdown(self.contents,
                                         extensions=ext,
diff --git a/simplewiki/settings.py b/simplewiki/settings.py
index 58c54130b3..3e5bab94d6 100644
--- a/simplewiki/settings.py
+++ b/simplewiki/settings.py
@@ -94,7 +94,6 @@ WIKI_MARKDOWN_EXTENSIONS = getattr(settings, 'SIMPLE_WIKI_MARKDOWN_EXTENSIONS',
                             'circuit' 
                             ])
 
-print WIKI_MARKDOWN_EXTENSIONS
 
 WIKI_IMAGE_EXTENSIONS       = getattr(settings, 
                                 'SIMPLE_WIKI_IMAGE_EXTENSIONS',
diff --git a/textbook/__init__.py b/textbook/__init__.py
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/textbook/models.py b/textbook/models.py
deleted file mode 100644
index 71a8362390..0000000000
--- a/textbook/models.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.db import models
-
-# Create your models here.
diff --git a/textbook/tests.py b/textbook/tests.py
deleted file mode 100644
index 501deb776c..0000000000
--- a/textbook/tests.py
+++ /dev/null
@@ -1,16 +0,0 @@
-"""
-This file demonstrates writing tests using the unittest module. These will pass
-when you run "manage.py test".
-
-Replace this with more appropriate tests for your application.
-"""
-
-from django.test import TestCase
-
-
-class SimpleTest(TestCase):
-    def test_basic_addition(self):
-        """
-        Tests that 1 + 1 always equals 2.
-        """
-        self.assertEqual(1 + 1, 2)
diff --git a/textbook/views.py b/textbook/views.py
deleted file mode 100644
index 6cc9e8ba6c..0000000000
--- a/textbook/views.py
+++ /dev/null
@@ -1,18 +0,0 @@
-from djangomako.shortcuts import render_to_response, render_to_string
-from django.shortcuts import redirect
-import os
-from django.conf import settings
-from django.http import Http404
-
-# We don't do subdirectories to reduce odds of possible future
-# security issues. Feel free to re-add them if needed -- just make
-# sure things like /../../etc/passwd are handled okay. 
-
-valid_files=os.listdir(settings.TEXTBOOK_DIR)
-
-def index(request, filename): 
-    if filename in valid_files:
-        text=open(settings.TEXTBOOK_DIR+filename).read()
-        return render_to_response('textbook.html',{'text':text})
-    else:
-        raise Http404
diff --git a/track/views.py b/track/views.py
index d793bf8911..2a368b3188 100644
--- a/track/views.py
+++ b/track/views.py
@@ -14,7 +14,6 @@ else:
 logfile = None
 file_index = 0 
 log_index = 0
-MAXLOG = 5
 filename = None
 
 def make_file():
@@ -31,20 +30,28 @@ def make_file():
 
 def log_event(event):
     global logfile, log_index
+    event_str = json.dumps(event)
     if settings.TRACK_DIR == None:
 #        print event
         return
 
-    if logfile == None or log_index >= MAXLOG:
+    if logfile == None or log_index >= settings.MAXLOG:
         make_file()
 
-    event_str = json.dumps(event)
-    logfile.write(event_str+'\n')
+    logfile.write(event_str[:settings.TRACK_MAX_EVENT]+'\n')
+    if settings.DEBUG_TRACK_LOG:
+        print event_str
     log_index = log_index + 1
 
 def user_track(request):
+    try: # TODO: Do the same for many of the optional META parameters
+        username = request.user.username
+    except: 
+        username = "anonymous"
+
+    # TODO: Move a bunch of this into log_event
     event = {
-        "username" : request.user.username,
+        "username" : username,
         "session" : request.META['HTTP_COOKIE'],
         "ip" : request.META['REMOTE_ADDR'],
         "event_source" : "browser",
@@ -57,8 +64,13 @@ def user_track(request):
     return HttpResponse('success')
 
 def server_track(request, event_type, event, page=None):
+    try: 
+        username = request.user.username
+    except: 
+        username = "anonymous"
+
     event = {
-        "username" : request.user.username, 
+        "username" : username, 
         "ip" : request.META['REMOTE_ADDR'],
         "event_source" : "server",
         "event_type" : event_type, 
diff --git a/util/views.py b/util/views.py
index b555cbfade..f61edf040e 100644
--- a/util/views.py
+++ b/util/views.py
@@ -10,27 +10,36 @@ import courseware.capa.calc
 from django.core.mail import send_mail
 from django.conf import settings
 import datetime
+import sys
+import track.views
 
 def calculate(request):
-    if not request.user.is_authenticated():
-        raise Http404
+#    if not request.user.is_authenticated():
+#        raise Http404
     equation = request.GET['equation']
     try: 
         result = courseware.capa.calc.evaluator({}, {}, equation)
     except:
+        event = {'error':map(str,sys.exc_info()),
+                 'equation':equation}
+        track.views.server_track(request, 'error:calc', event, page='calc')
         return HttpResponse(json.dumps({'result':'Invalid syntax'}))
     return HttpResponse(json.dumps({'result':result}))
 
 def send_feedback(request):
-    if not request.user.is_authenticated():
-        raise Http404
+#    if not request.user.is_authenticated():
+#        raise Http404
+    try: 
+        username = request.user.username
+    except: 
+        username = "anonymous"
     
     feedback = render_to_string("feedback_email.txt", 
                                 {"subject":request.POST['subject'], 
                                  "url": request.POST['url'], 
                                  "time": datetime.datetime.now().isoformat(),
                                  "feedback": request.POST['message'], 
-                                 "user":request.user.username})
+                                 "user":username})
 
     send_mail("MITx Feedback / " +request.POST['subject'], 
               feedback,