=== modified file 'bin/osv/orm.py'
--- bin/osv/orm.py	2010-06-23 15:47:37 +0000
+++ bin/osv/orm.py	2010-08-05 11:32:50 +0000
@@ -1100,11 +1100,11 @@
                 if not trans and ('base_model_name' in context):
                     trans = self.pool.get('ir.translation')._get_source(cr, user, context['base_model_name'], 'view', context['lang'], node.get('string').encode('utf8'))
                 if trans:
-                    node.set('string', trans)
+                    node.set('string', tools.ustr(trans))
             if node.get('sum'):
                 trans = self.pool.get('ir.translation')._get_source(cr, user, self._name, 'view', context['lang'], node.get('sum').encode('utf8'))
                 if trans:
-                    node.set('sum', trans)
+                    node.set('sum', tools.ustr(trans))
 
         if childs:
             for f in node: