? boost-305071.patch
Index: boost.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/boost/boost.module,v
retrieving revision 1.3.2.2.2.5.2.213
diff -u -p -r1.3.2.2.2.5.2.213 boost.module
--- boost.module	30 Oct 2009 15:30:48 -0000	1.3.2.2.2.5.2.213
+++ boost.module	30 Oct 2009 17:30:22 -0000
@@ -661,7 +661,7 @@ function boost_user($op, &$edit, &$accou
       boost_set_cookie($user);
       break;
     case 'logout':
-      boost_set_cookie($user, BOOST_TIME - 86400);
+      boost_set_cookie($user, 434966400);
       break;
     case 'delete':
       // Expire the relevant user page from the static page cache to prevent serving stale content: