Index: branches/5.1.x/core/kernel/utility/cache.php
===================================================================
diff -u -N -r13990 -r13991
--- branches/5.1.x/core/kernel/utility/cache.php	(.../cache.php)	(revision 13990)
+++ branches/5.1.x/core/kernel/utility/cache.php	(.../cache.php)	(revision 13991)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: cache.php 13990 2010-10-19 09:03:27Z alex $
+* @version	$Id: cache.php 13991 2010-10-19 09:05:49Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -415,7 +415,15 @@
 				$servers = explode(';', $memcached_servers);
 
 			 	foreach ($servers as $server) {
-			 		list ($server, $port) = strpos($server, ':') !== false ? explode(':', $server, 2) : Array ($server, 11211);
+			 		if ( preg_match('/(.*):([\d]+)$/', $server, $regs) ) {
+			 			// "hostname:port" OR "unix:///path/to/socket:0"
+			 			$server = $regs[1];
+			 			$port = $regs[2];
+			 		}
+			 		else {
+			 			$port = 11211;
+			 		}
+
 			 		$this->_handler->addServer($server, $port);
 			 	}
 
@@ -459,7 +467,7 @@
 		 */
 		function delete($name)
 		{
-			return $this->_handler->delete($name);
+			return $this->_handler->delete($name, 0);
 		}
 
 		/**