diff --git a/addons/auth_signup/auth_signup_data.xml b/addons/auth_signup/auth_signup_data.xml
index 043733873b1..f153f03237d 100644
--- a/addons/auth_signup/auth_signup_data.xml
+++ b/addons/auth_signup/auth_signup_data.xml
@@ -11,8 +11,8 @@
             <field name="active" eval="False"/>
             <!-- Avoid auto-including this user in any default group, just like a typical portal member -->
             <field name="groups_id" eval="[(5,)]"/>
-            <!-- no alias for portal users -->
-            <field name="alias_name" eval="False"/>
+            <!-- allow signuped users to have a alias -->
+            <field name="alias_name">_usertemplate</field>
         </record>
 
         <record id="default_template_user_config" model="ir.config_parameter">
diff --git a/addons/auth_signup/res_users.py b/addons/auth_signup/res_users.py
index 66f7913c966..a9469e4de0d 100644
--- a/addons/auth_signup/res_users.py
+++ b/addons/auth_signup/res_users.py
@@ -234,8 +234,6 @@ class res_users(osv.Model):
 
         # create a copy of the template user (attached to a specific partner_id if given)
         values['active'] = True
-        if 'alias_name' not in values:      # allow behavior change via inheritance (like using the name)
-            values['alias_name'] = False
         context = dict(context or {}, no_reset_password=True)
         return self.copy(cr, uid, template_user_id, values, context=context)
 
diff --git a/addons/im_livechat/im_livechat.py b/addons/im_livechat/im_livechat.py
index b21a31d8362..e322467e64e 100644
--- a/addons/im_livechat/im_livechat.py
+++ b/addons/im_livechat/im_livechat.py
@@ -211,5 +211,5 @@ class im_session(osv.osv):
     _inherit = 'im.session'
 
     _columns = {
-        'channel_id': fields.many2one("im.user", "Channel"),
+        'channel_id': fields.many2one("im_livechat.channel", "Channel"),
     }
diff --git a/addons/mail/res_users.py b/addons/mail/res_users.py
index ac1d406c29a..e335929ec2f 100644
--- a/addons/mail/res_users.py
+++ b/addons/mail/res_users.py
@@ -81,6 +81,12 @@ class res_users(osv.Model):
         self._create_welcome_message(cr, uid, user, context=context)
         return user_id
 
+    def copy_data(self, *args, **kwargs):
+        data = super(res_users, self).copy_data(*args, **kwargs)
+        if data.get('alias_name'):
+            data['alias_name'] = data['login']
+        return data
+
     def _create_welcome_message(self, cr, uid, user, context=None):
         if not self.has_group(cr, uid, 'base.group_user'):
             return False
diff --git a/addons/portal_sale/portal_sale_data.xml b/addons/portal_sale/portal_sale_data.xml
index 750ae12995f..2da55bcb081 100644
--- a/addons/portal_sale/portal_sale_data.xml
+++ b/addons/portal_sale/portal_sale_data.xml
@@ -13,6 +13,7 @@
             <field name="auto_delete" eval="True"/>
             <field name="report_template" ref="sale.report_sale_order"/>
             <field name="report_name">${(object.name or '').replace('/','_')}_${object.state == 'draft' and 'draft' or ''}</field>
+            <field name="lang">${object.partner_id.lang}</field>
             <field name="body_html"><![CDATA[
 <div style="font-family: 'Lucica Grande', Ubuntu, Arial, Verdana, sans-serif; font-size: 12px; color: rgb(34, 34, 34); background-color: rgb(255, 255, 255); ">
 
@@ -102,6 +103,7 @@
             <field name="auto_delete" eval="True"/>
             <field name="report_template" ref="account.account_invoices"/>
             <field name="report_name">Invoice_${(object.number or '').replace('/','_')}_${object.state == 'draft' and 'draft' or ''}</field>
+            <field name="lang">${object.partner_id.lang}</field>
             <field name="body_html"><![CDATA[
 <div style="font-family: 'Lucica Grande', Ubuntu, Arial, Verdana, sans-serif; font-size: 12px; color: rgb(34, 34, 34); background-color: rgb(255, 255, 255); ">
 
diff --git a/addons/sale_stock/sale_stock.py b/addons/sale_stock/sale_stock.py
index 341aaef8ca8..26d9d80f13e 100644
--- a/addons/sale_stock/sale_stock.py
+++ b/addons/sale_stock/sale_stock.py
@@ -70,7 +70,7 @@ class sale_order(osv.osv):
         company_id = self.pool.get('res.users')._get_company(cr, uid, context=context)
         warehouse_ids = self.pool.get('stock.warehouse').search(cr, uid, [('company_id', '=', company_id)], context=context)
         if not warehouse_ids:
-            raise osv.except_osv(_('Error!'), _('There is no warehouse defined for current company.'))
+            return False
         return warehouse_ids[0]
 
     # This is False