[25-Aug-2010 19:24:17 +0100]: Plugin google_contacts: Zend GData API not installed (http://framework.zend.com/download/webservices)
[25-Aug-2010 19:24:17] PHP Fatal error: Class 'rcube_result_set' not found in /www/vhosts/mail/program/include/rcube_contacts.php on line 159
But, running the Zend checker
Any ideas ?