Index: wp-admin/includes/file.php
===================================================================
--- wp-admin/includes/file.php	(revision 8052)
+++ wp-admin/includes/file.php	(working copy)
@@ -36,7 +36,7 @@
 	if ('index.php' == $file || '.htaccess' == $file ) {
 		$real_file = get_home_path() . $file;
 	} else {
-		$real_file = ABSPATH . $file;
+		$real_file = WP_CONTENT_DIR . $file;
 	}
 
 	return $real_file;