diff --git a/addons/event/event.py b/addons/event/event.py
index e2b45f9d5ce..ffda827614e 100644
--- a/addons/event/event.py
+++ b/addons/event/event.py
@@ -178,7 +178,7 @@ class event_event(osv.osv):
         """
         register_pool = self.pool.get('event.registration')
         res = super(event_event, self).write(cr, uid, ids, vals, context=context)
-        if vals.get('date_begin', False) or vals.get('mail_auto_confirm', False) or vals.get('mail_confirm', False):
+        if vals.get('date_begin', False) or vals.get('mail_confirm', False):
             for event in self.browse(cr, uid, ids, context=context):
                 #change the deadlines of the registration linked to this event
                 register_values = {}
@@ -186,6 +186,8 @@ class event_event(osv.osv):
                     register_values['date_deadline'] = vals['date_begin']
 
                 #change the description of the registration linked to this event
+                
+                """
                 if vals.get('mail_auto_confirm', False):
                     if vals['mail_auto_confirm']:
                         if 'mail_confirm' not in vals:
@@ -194,7 +196,7 @@ class event_event(osv.osv):
                         vals['mail_confirm'] = False
                 if 'mail_confirm' in vals:
                     register_values['description'] = vals['mail_confirm']
-
+"""
                 if register_values:
                     reg_ids = register_pool.search(cr, uid, [('event_id', '=', event.id)], context=context)
                     register_pool.write(cr, uid, reg_ids, register_values, context=context)
diff --git a/addons/event/report/report_event_registration.py b/addons/event/report/report_event_registration.py
index 3f5ec427af3..cfdbfcf70c4 100644
--- a/addons/event/report/report_event_registration.py
+++ b/addons/event/report/report_event_registration.py
@@ -37,7 +37,7 @@ class report_event_registration(osv.osv):
             ('10','October'), ('11','November'), ('12','December')], 'Month',readonly=True),
         'event_id': fields.many2one('event.event', 'Event', required=True),
         'draft_state': fields.integer(' # No of Draft Registrations', size=20),
-        'state': fields.integer(' # No of Draft Registrations', size=20),
+        'average_subtotal': fields.integer('average_subtotal', size=20),
         'confirm_state': fields.integer(' # No of Confirmed Registrations', size=20),
         'register_max': fields.integer('Maximum Registrations'),
         'nbevent': fields.integer('Number Of Events'),
@@ -84,6 +84,7 @@ class report_event_registration(osv.osv):
                 
                 e.type AS type,
                 r.price_subtotal,
+                AVG(r.price_subtotal) AS average_subtotal,
                 e.register_max AS register_max,
                 e.state AS  event_state,
                 r.state AS  registration_state
diff --git a/addons/event/report/report_event_registration_view.xml b/addons/event/report/report_event_registration_view.xml
index 26e6b598517..5e48174c4a8 100644
--- a/addons/event/report/report_event_registration_view.xml
+++ b/addons/event/report/report_event_registration_view.xml
@@ -22,7 +22,8 @@
                     <field name="confirm_state"/>
                     <field name="registration_state" invisible="1"/>
                     <field name="user_id_registration" invisible="1"/>
-                    <field name="price_subtotal" invisible="1"/>
+                    <field name="price_subtotal"/>
+                    <field name="average_subtotal"/>
                     <field name="register_max" invisible="context.get('max_reg_event_visible', True)"/>
                     <field name="company_id" invisible="1"/>
                     <field name="product_id" invisible="1"/>
@@ -123,7 +124,6 @@
                     <newline/>
                     <group expand="1" string="Group By Registration...">
                         <filter string="State" icon="terp-stock_effects-object-colorize" context="{'group_by':'registration_state'}" help="Events States"/>
-                        <filter string="price_subtotal" icon="terp-stock_effects-object-colorize" context="{'group_by':'price_subtotal'}" help="Events States"/>
                         <filter string="user" icon="terp-stock_effects-object-colorize" context="{'group_by':'user_id_registration'}" help="Events States"/>
 
                     </group>