diff -r 55972f0ba4e4 -r d82cc0823884 htdocs/sites/all/modules/og/og_access/og_access.module
--- a/htdocs/sites/all/modules/og/og_access/og_access.module	Fri May 06 10:27:52 2011 -0400
+++ b/htdocs/sites/all/modules/og/og_access/og_access.module	Fri May 06 15:35:53 2011 -0400
@@ -142,6 +142,7 @@
   //TODO: Add a case where the group has access field but group content doesn't.

   if ($access && $gids) {
+    $priority = variable_get('og_access_boost_priority', 0);
     foreach ($gids as $gid) {
       $grants[] = array (
         'realm' => OG_ACCESS_AUTHENTICATED_REALM,
@@ -149,11 +150,10 @@
         'grant_view' => 1,
         'grant_update' => 0,
         'grant_delete' => 0,
-        'priority' => 0,
+        'priority' => $priority,
       );
     }
   }
-
   return $grants;
 }

diff -r 55972f0ba4e4 -r d82cc0823884 htdocs/sites/all/modules/og/og_ui/og_ui.admin.inc
--- a/htdocs/sites/all/modules/og/og_ui/og_ui.admin.inc	Fri May 06 10:27:52 2011 -0400
+++ b/htdocs/sites/all/modules/og/og_ui/og_ui.admin.inc	Fri May 06 15:35:53 2011 -0400
@@ -18,10 +18,34 @@
     '#description' => t('When enabled the group manager will have all the permissions in the group.'),
     '#default_value' => variable_get('og_group_manager_full_access', TRUE),
   );
+  if(module_exists('og_access')){
+    $form['og_access_boost_priority'] = array(
+      '#type' => 'weight',
+      '#title' => t('Organic Groups Access node grants priority'),
+      '#default_value' => variable_get('og_access_boost_priority', 0),
+      '#description' => t('If you are only using this access control module, you can safely ignore this. A heavier '.
+          '(positive) number will resolve conflicts with other ACL modules, such as TAC Lite, allowing OG\'s Access '.
+          'Control to determine the access control rules of content above other modules.'),
+    );
+    $form['#submit'][] = '_og_ui_user_admin_settings_submit';
+  }

   return system_settings_form($form);
 }

+
+/*
+ * If og_access is turned on, process the form here first so we can force a
+ * rebuild of permissions in the case of a modification in the priority.
+ *
+ */
+function _og_ui_user_admin_settings_submit($form, &$form_state) {
+  $values = $form_state['values'];
+  if(variable_get('og_access_boost_priority') != $values['og_access_boost_priority'])
+    node_access_needs_rebuild(TRUE);
+}
+
+
 /**
  * Provide an overview of the administrator menu items.
  *