diff --git a/addons/crm/crm_lead.py b/addons/crm/crm_lead.py
index e92378785d6..7e0dc1ea36a 100644
--- a/addons/crm/crm_lead.py
+++ b/addons/crm/crm_lead.py
@@ -36,7 +36,6 @@ class crm_lead(osv.osv, crm_case):
     _order = "priority, id desc"
     _inherit = ['res.partner.address']
     _inherits = {'mailgate.thread': 'thread_id'}
-    _log_create=True
 
     def _compute_day(self, cr, uid, ids, fields, args, context={}):
         """
diff --git a/addons/crm/crm_meeting.py b/addons/crm/crm_meeting.py
index e3116ba39ca..3529e329ffa 100644
--- a/addons/crm/crm_meeting.py
+++ b/addons/crm/crm_meeting.py
@@ -45,7 +45,7 @@ class crm_meeting(osv.osv, crm_case):
     _order = "id desc"
     _inherit = ["calendar.event"]
     _inherits = {'mailgate.thread': 'thread_id'}
-    _log_create=True
+   
 
     _columns = {
         # From crm.case
diff --git a/addons/crm/crm_phonecall.py b/addons/crm/crm_phonecall.py
index 4ed59e2a5c3..29a52866907 100644
--- a/addons/crm/crm_phonecall.py
+++ b/addons/crm/crm_phonecall.py
@@ -32,7 +32,7 @@ class crm_phonecall(osv.osv, crm_case):
     _description = "Phonecall"
     _order = "id desc"
     _inherits = {'mailgate.thread': 'thread_id'}
-    _log_create=True
+    
 
     _columns = {
         # From crm.case
diff --git a/addons/crm_claim/crm_claim.py b/addons/crm_claim/crm_claim.py
index a5dfc5a30e5..6677b29151e 100644
--- a/addons/crm_claim/crm_claim.py
+++ b/addons/crm_claim/crm_claim.py
@@ -30,7 +30,7 @@ class crm_claim(osv.osv, crm.crm_case):
     _description = "Claim Cases"
     _order = "id desc"
     _inherits = {'mailgate.thread': 'thread_id'}
-    _log_create=True
+   
 
     _columns = {
         'thread_id': fields.many2one('mailgate.thread', 'Thread', required=False), 
diff --git a/addons/crm_fundraising/crm_fundraising.py b/addons/crm_fundraising/crm_fundraising.py
index 4ff7832e64f..6fb70b97a46 100644
--- a/addons/crm_fundraising/crm_fundraising.py
+++ b/addons/crm_fundraising/crm_fundraising.py
@@ -29,7 +29,7 @@ class crm_fundraising(osv.osv, crm.crm_case):
     _description = "Fund Raising Cases"
     _order = "id desc"
     _inherits = {'mailgate.thread': 'thread_id'}
-    _log_create=True
+    
 
     _columns = {
             'thread_id': fields.many2one('mailgate.thread', 'Thread', required=False), 
diff --git a/addons/crm_helpdesk/crm_helpdesk.py b/addons/crm_helpdesk/crm_helpdesk.py
index 0b14994d2b6..35de73c4471 100644
--- a/addons/crm_helpdesk/crm_helpdesk.py
+++ b/addons/crm_helpdesk/crm_helpdesk.py
@@ -29,7 +29,7 @@ class crm_helpdesk(osv.osv, crm.crm_case):
     _description = "Helpdesk Cases"
     _order = "id desc"
     _inherits = {'mailgate.thread': 'thread_id'}
-    _log_create=True
+   
 
     _columns = {
             'thread_id': fields.many2one('mailgate.thread', 'Thread', required=False), 
diff --git a/addons/crm_profiling/crm_profiling.py b/addons/crm_profiling/crm_profiling.py
index 6f61687e12d..71c494ffb94 100644
--- a/addons/crm_profiling/crm_profiling.py
+++ b/addons/crm_profiling/crm_profiling.py
@@ -158,7 +158,7 @@ class questionnaire(osv.osv):
 
     _name="crm_profiling.questionnaire"
     _description= "Questionnaire"
-    _log_create = True
+   
 
     def build_form(self, cr, uid, data, context):
         """
diff --git a/addons/mail_gateway/mail_gateway.py b/addons/mail_gateway/mail_gateway.py
index 76b35c630ee..dbbc1e8d748 100644
--- a/addons/mail_gateway/mail_gateway.py
+++ b/addons/mail_gateway/mail_gateway.py
@@ -36,7 +36,7 @@ class mailgate_thread(osv.osv):
     _name = 'mailgate.thread'
     _description = 'Mailgateway Thread'
     _rec_name = 'thread' 
-
+    
     _columns = {
         'thread': fields.char('Thread', size=32, required=False), 
         'message_ids': fields.one2many('mailgate.message', 'thread_id', 'Messages', domain=[('history', '=', True)], required=False), 
@@ -120,8 +120,7 @@ class mailgate_message(osv.osv):
     _name = 'mailgate.message'
     _description = 'Mailgateway Message'
     _order = 'date desc'
-    _log_create=True
-
+    
     _columns = {
         'name':fields.char('Message', size=64), 
         'thread_id':fields.many2one('mailgate.thread', 'Thread'),