Index: content_profile.module
===================================================================
--- content_profile.module	(revision 2402)
+++ content_profile.module	(working copy)
@@ -477,7 +477,7 @@
 function content_profile_load($type, $uid, $lang = '') {
   static $cache = array();
 
-  if (!isset($cache[$type][$uid][$lang])) {
+  if (!(int)($cache[$type][$uid][$lang])) {
     $cache[$type][$uid][$lang] = FALSE;
     $params = array('type' => $type, 'uid' => $uid);
     if ($node = node_load($lang ? $params + array('language' => $lang) : $params)) {