diff --git a/addons/base_calendar/base_calendar.py b/addons/base_calendar/base_calendar.py
index 9693a0d5c0f..095a1654991 100644
--- a/addons/base_calendar/base_calendar.py
+++ b/addons/base_calendar/base_calendar.py
@@ -1296,7 +1296,7 @@ e.g.: Every other month on the last Sunday of the month for 10 occurrences:\
                         if name == "UNTIL":
                             is_until = True
                             value = parser.parse(value)
-                            rrule_until_date = parser.parse(value.strftime("%Y-%m-%d"))
+                            rrule_until_date = parser.parse(value.strftime("%Y-%m-%d %H:%M:%S"))
                             if until_date and until_date >= rrule_until_date:
                                 until_date = rrule_until_date
                             if until_date:
diff --git a/addons/caldav/wizard/caldav_browse_view.xml b/addons/caldav/wizard/caldav_browse_view.xml
index 0a7e6269fe2..53af6029883 100644
--- a/addons/caldav/wizard/caldav_browse_view.xml
+++ b/addons/caldav/wizard/caldav_browse_view.xml
@@ -15,8 +15,10 @@
                         <separator string="Description" colspan="4"/>
                         <field name="description"  colspan="4"  nolabel="1"/>
                         <separator colspan="4"/>
-                       
-                        
+                      <group col="4" colspan="4">
+                        <label string="" colspan="2"/>
+                        <button special="cancel" string="_Close" icon="gtk-close"/>
+                      </group>
                     </group>
                 </form>
             </field>
diff --git a/addons/crm/crm.py b/addons/crm/crm.py
index f25e4c1a0bf..7014fd77517 100644
--- a/addons/crm/crm.py
+++ b/addons/crm/crm.py
@@ -199,6 +199,13 @@ class crm_case(object):
         user = self.pool.get('res.users').browse(cr, uid, uid, context=context)
         return user.context_section_id.id or False
 
+    def unlink(self, cr, uid, ids, context={}):
+        for case in self.browse(cr, uid, ids, context):
+            if (not case.section_id.allow_unlink) and (case.state <> 'draft'):
+                raise osv.except_osv(_('Warning !'),
+                    _('You can not delete this case. You should better cancel it.'))
+        return super(crm_case, self).unlink(cr, uid, ids, context)
+
     def _find_next_stage(self, cr, uid, stage_list, index, current_seq, stage_pool, context=None):
         if index + 1 == len(stage_list):
             return False
diff --git a/addons/crm/crm_meeting_view.xml b/addons/crm/crm_meeting_view.xml
index 3b87672d081..a2d66040fa9 100644
--- a/addons/crm/crm_meeting_view.xml
+++ b/addons/crm/crm_meeting_view.xml
@@ -179,7 +179,7 @@
                                 <field name="count" attrs="{'invisible' : [('end_type', '!=', 'count')] }"/>
                                 <label string=" " colspan="2" />
                                 <newline />
-                                <field name="end_date" attrs="{'invisible' : [('end_type', '!=', 'end_date')] }"/>
+                                <field name="end_date" attrs="{'invisible' : [('end_type', '!=', 'end_date')], 'required': [('end_type', '=', 'end_date')]}"/>
                                 <newline />