diff --git a/trytond/ir/translation.xml b/trytond/ir/translation.xml
index edde03c466..42cf666ddb 100644
--- a/trytond/ir/translation.xml
+++ b/trytond/ir/translation.xml
@@ -95,6 +95,15 @@
             <field name="module">ir</field>
             <field name="fuzzy" eval="False"/>
         </record>
+        <record model="ir.translation" id="translation_delete_workflow_record">
+            <field name="name">delete_workflow_record</field>
+            <field name="lang">en_US</field>
+            <field name="type">error</field>
+            <field name="src">You cannot delete a record with a running workflow.</field>
+            <field name="value">You cannot delete a record with a running workflow.</field>
+            <field name="module">ir</field>
+            <field name="fuzzy" eval="False"/>
+        </record>
 
         <record model="ir.ui.view" id="act_translation_set_report_init_view_form">
             <field name="model">ir.translation.set_report.init</field>
diff --git a/trytond/ir/ui/view.py b/trytond/ir/ui/view.py
index 6a9bf270f0..7519aba7ac 100644
--- a/trytond/ir/ui/view.py
+++ b/trytond/ir/ui/view.py
@@ -15,12 +15,13 @@ class View(OSV):
     model = fields.Char('Model', required=True, select=1)
     priority = fields.Integer('Priority', required=True, select=1)
     type = fields.Selection([
-       ('tree','Tree'),
-       ('form','Form'),
-       ('graph', 'Graph'),
-       ('calendar', 'Calendar'),
-       ('board', 'Board'),
-       ], 'View Type', select=1)
+        (False, ''),
+        ('tree','Tree'),
+        ('form','Form'),
+        ('graph', 'Graph'),
+        ('calendar', 'Calendar'),
+        ('board', 'Board'),
+        ], 'View Type', select=1)
     arch = fields.Text('View Architecture', required=True)
     inherit = fields.Many2One('ir.ui.view', 'Inherited View', select=1,
             ondelete='CASCADE')
@@ -33,7 +34,7 @@ class View(OSV):
             ('check_xml', 'invalid_xml'),
         ]
         self._error_messages.update({
-            'invalid_xml': 'Invalid XML for View Architecture!',
+            'invalid_xml': 'Invalid XML for View!',
         })
         self._order.insert(0, ('priority', 'ASC'))
 
@@ -63,6 +64,14 @@ class View(OSV):
             xml = view.arch.strip()
             tree = etree.fromstring(xml)
 
+            if view.inherit:
+                if view.model != view.inherit.model:
+                    logger = logging.getLogger('ir')
+                    logger.error('Invalid model "%s" ' \
+                            'with inherited model "%"' % \
+                            (view.model, view.inherit.model))
+                    return False
+
             # validate the tree using RelaxNG
             rng_name = os.path.join(os.path.dirname(__file__),
                     (view.inherit and view.inherit.type or view.type) + '.rng')
diff --git a/trytond/netsvc.py b/trytond/netsvc.py
index d24911343e..c4fd3e2074 100644
--- a/trytond/netsvc.py
+++ b/trytond/netsvc.py
@@ -295,7 +295,12 @@ class TinySocketClientThread(threading.Thread):
                     import pdb
                     tback = sys.exc_info()[2]
                     pdb.post_mortem(tback)
-                pysocket.send(exception.args, exception=True, traceback=tb_s)
+                try:
+                    pysocket.send(exception.args, exception=True, traceback=tb_s)
+                except:
+                    pysocket.disconnect()
+                    self.threads.remove(self)
+                    return False
         pysocket.disconnect()
         self.threads.remove(self)
         return True
diff --git a/trytond/osv/orm.py b/trytond/osv/orm.py
index d57504d1b6..e40dba42f6 100644
--- a/trytond/osv/orm.py
+++ b/trytond/osv/orm.py
@@ -1406,8 +1406,8 @@ class ORM(object):
                 "AND res_type = %s AND state != 'complete'",
             ids + [self._name])
         if cursor.rowcount != 0:
-            raise Exception('UserError',
-                    'You cannot delete a record with a running workflow.')
+            self.raise_user_error(cursor, 'delete_workflow_record',
+                    context=context)
 
         wf_service = LocalService("workflow")
         for obj_id in ids:
@@ -2142,7 +2142,7 @@ class ORM(object):
                         raise AttributeError('Unknown position ' \
                                 'in inherited view %s!' % pos)
                 else:
-                    raise AttributeError('Couldn\'t find tag in parent view!')
+                    raise AttributeError('Couldn\'t find tag (%s: %s) in parent view!' % (element2.tag, element2.get('expr')))
             return etree.tostring(tree_src, encoding='utf-8')
 
         result = {'type': view_type, 'model': self._name}