diff -u b/includes/php4.inc b/includes/php4.inc
--- b/includes/php4.inc
+++ b/includes/php4.inc
@@ -28,7 +28,7 @@
         if (!empty($results) && is_array($results)) {
           foreach($results as $name => $view) {
             // Only views with a sufficiently high api version are eligible.
-            if (!empty($view->api_version) && $view->api_version >= 2) {
+            if (!empty($view->api_version) && $view->api_version >= views_api_minimum_version()) {
               // Do not cache dead handlers.
               $view->destroy();
               if (!isset($cache[$name])) {
diff -u b/includes/php5.inc b/includes/php5.inc
--- b/includes/php5.inc
+++ b/includes/php5.inc
@@ -76,7 +76,7 @@
     // requested on the page.
     if (isset($this->index[$offset])) {
       $views = views_initialize_module_views($this->index[$offset]);
-      if (is_object($views[$offset])) {
+      if (isset($views[$offset]) && is_object($views[$offset])) {
         $this->storage[$offset] = $views[$offset];
         $view_clone = clone $views[$offset];
         $view_clone->destroy();
@@ -203,7 +203,7 @@
   }
 
   function offsetExists($offset) {
-    return isset($this->views[$offset]);
+    return (bool) views_get_view($offset);
   }
 
   function offsetUnset($offset) {
@@ -211,7 +211,7 @@
   }
 
   function offsetGet($offset) {
-    return isset($this->views[$offset]) ? $this->views[$offset] : null;
+    return views_get_view($offset);
   }
 }
 
@@ -232,7 +232,7 @@
     if ($result) {
       drupal_alter('views_default_views', $result);
       foreach ($result as $key => $view) {
-        if (!empty($view->api_version) && $view->api_version >= 2) {
+        if (!empty($view->api_version) && $view->api_version >= views_api_minimum_version()) {
           $views[$key] = $view;
         }
       }