Index: /media/truecrypt1/work/Openerp/trunk-addons/base_contact/base_contact_view.xml
===================================================================
--- /media/truecrypt1/work/Openerp/trunk-addons/base_contact/base_contact_view.xml	(revision 13001)
+++ /media/truecrypt1/work/Openerp/trunk-addons/base_contact/base_contact_view.xml	(revision 13013)
@@ -254,8 +254,13 @@
         <field name="inherit_id" ref="base.view_partner_address_form1"/>
         <field name='type'>form</field>
         <field name='arch' type='xml'>
+            
+        	<field name="partner_id" position="replace">
+        		<field name="partner_id" colspan="2" attrs="{'required':[('contact_id','=', False)]}"/>
+        	</field> 
+        	   
             <field name="name" position="replace">
-                <field name="contact_id" on_change="onchange_contact_id(contact_id)" />
+                <field name="contact_id" on_change="onchange_contact_id(contact_id)" attrs="{'required':[('partner_id','=', False)]}"/>
                 <!-- <field name="name" string="use this field for initial name only" /> would require adaption of create-->
             </field>
             <separator string="Postal Address" position="after">