diff --git a/addons/account/account.py b/addons/account/account.py
index c3cd13a8115..904f5e549f5 100644
--- a/addons/account/account.py
+++ b/addons/account/account.py
@@ -708,7 +708,9 @@ class account_journal(osv.osv):
 
         return self.name_get(cr, user, ids, context=context)
 
-    def onchange_type(self, cr, uid, ids, type, currency):
+    def onchange_type(self, cr, uid, ids, type, currency,context=None):
+        if context is None:
+            context = {}
         obj_data = self.pool.get('ir.model.data')
         user_pool = self.pool.get('res.users')
 
diff --git a/addons/account/invoice.py b/addons/account/invoice.py
index b6d8fcb9de0..e6e07b8eb68 100644
--- a/addons/account/invoice.py
+++ b/addons/account/invoice.py
@@ -1313,7 +1313,6 @@ class account_invoice_line(osv.osv):
         if context is None:
             context = {}
         company_id = context.get('company_id',False)
-        tax_obj = self.pool.get('account.tax')
         if not partner_id:
             raise osv.except_osv(_('No Partner Defined !'),_("You must first select a partner !") )
         if not product:
diff --git a/addons/outlook/installer.py b/addons/outlook/installer.py
index f3f5ece60d6..47d488849fe 100755
--- a/addons/outlook/installer.py
+++ b/addons/outlook/installer.py
@@ -39,7 +39,7 @@ class outlook_installer(osv.osv_memory):
     _columns = {
         'name':fields.char('File name', size=34),
         'doc_name':fields.char('File name', size=64),
-        'outlook':fields.boolean('Outlook Plug-in ', help="Allows you to select an object that you’d like to add to your email and its attachments."),
+        'outlook':fields.boolean('Outlook Plug-in ', help="Allows you to select an object that you would like to add to your email and its attachments."),
         'plugin_file':fields.binary('Outlook Plug-in', readonly=True, help="outlook plug-in file. Save as this file and install this plug-in in outlook."),
         'doc_file':fields.char('Installation Manual',size="264",help="The documentation file :- how to install Outlook Plug-in.", readonly=True),
         'description':fields.text('Description', readonly=True)