i also got this error a couple of times from the cron email but it has quit now!!??!!??

<br />
<b>Warning</b>: include_once(includes/config_sites/sites_switch.php) [<a href='function.include-once'>function.include-once</a>]: failed to open stream: No such file or directory in <b>/HOME*/USER_NAME/public_html/includes/configure.php</b> on line <b>2</b><br /> <br />
<b>Warning</b>: include_once() [<a href='function.include'>function.include</a>]: Failed opening 'includes/config_sites/sites_switch.php' for inclusion (include_path='.:/usr/share/pear') in <b>/HOME*/USER_NAME/public_html/includes/configure.php</b> on line <b>2</b><br />
Has anyone else got this working as well as multisite??