I have a cronjob running with Piwik on Debian Linux.
/var/www/x/piwik/misc/cron/archive.sh > /dev/null
PHP 5.2.6-1+lenny9 with Suhosin-Patch 0.9.6.2 (cli) (built: Aug 4 2010 06:06:53)
When I upgraded to v 1.1.1 I got the following mail:
Backtrace --> There is an error. Please report the message and full backtrace in the Piwik forums. Warning: Zend_Loader::include_once(): Failed opening 'Zend/Mail/Protocol/Smtp/Auth/LOGIN.php' for inclusion (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/x/piwik/libs/Zend/Loader.php on line 146 Backtrace -->
I just renamed the Loader.php, problem fixed. It was orginially LOADER.php,