=== modified file 'account/account_bank_statement.py'
--- account/account_bank_statement.py	2013-04-18 10:24:33 +0000
+++ account/account_bank_statement.py	2013-04-28 06:26:37 +0000
@@ -55,9 +55,15 @@
     def _end_balance(self, cursor, user, ids, name, attr, context=None):
         res = {}
         for statement in self.browse(cursor, user, ids, context=context):
-            res[statement.id] = statement.balance_start
-            for line in statement.line_ids:
-                res[statement.id] += line.amount
+            if statement:
+                res[statement.id] = statement.balance_start
+                for line in statement.line_ids:
+                    res[statement.id] += line.amount
+                for line in statement.move_line_ids:
+                    if line.credit > 0:
+                        res[statement.id] -= line.credit 
+                    if line.debit > 0:
+                        res[statement.id] += line.debit
         return res
 
     def _get_period(self, cr, uid, context=None):