diff --git a/weboob/backend.py b/weboob/backend.py
index 8a8b248a..8b691b91 100644
--- a/weboob/backend.py
+++ b/weboob/backend.py
@@ -1,4 +1,3 @@
-
 # -*- coding: utf-8 -*-
 
 """
diff --git a/weboob/capabilities/messages.py b/weboob/capabilities/messages.py
index e4b7bb70..8f4ff595 100644
--- a/weboob/capabilities/messages.py
+++ b/weboob/capabilities/messages.py
@@ -72,13 +72,16 @@ class Message:
     def is_new(self):
         return self.new
 
+    def __eq__(self, msg):
+        return self.id == msg.id and self.thread_id == msg.thread_id
+
     def __repr__(self):
         result = '<Message id="%s" title="%s" date="%s" from="%s">' % (
             self.id, self.title, self.date, self.sender)
         return result.encode('utf-8')
 
 class ICapMessages:
-    def iter_messages(self):
+    def iter_new_messages(self):
         """
         Iterates on new messages from last time this function has been called.
 
@@ -86,6 +89,12 @@ class ICapMessages:
         """
         raise NotImplementedError()
 
-class ICapMessagesReply:
-    def post_reply(self, message):
+    def iter_messages(self):
+        """
+        Iterates on every messages
+        """
+        raise NotImplementedError()
+
+class ICapMessagesReply:
+    def post_reply(self, to, message):
         raise NotImplementedError()
diff --git a/weboob/tools/browser.py b/weboob/tools/browser.py
index 62fb6043..8a34eed5 100644
--- a/weboob/tools/browser.py
+++ b/weboob/tools/browser.py
@@ -20,9 +20,21 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 import mechanize
 import urllib2
-import html5lib
 import ClientForm
-from html5lib import treebuilders
+try:
+    from html5lib import treebuilders, HTMLParser
+except ImportError:
+    # XXX change this to use another lib than html5lib
+    class StandardParser:
+        def parse(self, data):
+            return None
+else:
+    class StandardParser(HTMLParser):
+        def __init__(self):
+            HTMLParser.__init__(self, tree=treebuilders.getTreeBuilder("dom"))
+
+        def parse(self, data):
+            return HTMLParser.parse(data, encoding='iso-8859-1')
 import re
 import time
 from logging import warning, error
@@ -60,13 +72,6 @@ class BasePage:
     def loaded(self):
         pass
 
-class StandardParser(html5lib.HTMLParser):
-    def __init__(self):
-        html5lib.HTMLParser.__init__(self, tree=treebuilders.getTreeBuilder("dom"))
-
-    def parse(self, data):
-        return html5lib.HTMLParser.parse(data, encoding='iso-8859-1')
-
 class Browser(mechanize.Browser):
 
     # ------ Class attributes --------------------------------------