Index: libraries.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/libraries/libraries.module,v
retrieving revision 1.16
diff -u -p -r1.16 libraries.module
--- libraries.module	15 Dec 2010 21:09:52 -0000	1.16
+++ libraries.module	11 Jan 2011 19:05:32 -0000
@@ -359,6 +359,11 @@ function libraries_detect_library(&$libr
  *   The name of the variant to load.
  */
 function libraries_load($name, $variant = NULL) {
+  $loaded_libraries = &drupal_static(__FUNCTION__);
+  if (isset($loaded_libraries[$name])) {
+    return FALSE;
+  }
+
   $library = libraries_info($name);
   libraries_detect_library($library);
 
@@ -377,7 +382,9 @@ function libraries_load($name, $variant 
     $library = array_merge($library, $library['variants'][$variant]);
   }
 
-  return libraries_load_files($library, $variant);
+  $count = libraries_load_files($library, $variant);
+  $loaded_libraries[$name] = TRUE;
+  return $count;
 }
 
 /**