Sysadmin Ramblings

After copying our configuration from our old server to our new server, we lost the select box that allowed the user to choose Traditional (imp) or Dynamic (dimp). Reading login.php we found:
if (!empty($conf['user']['select_view'])) {
    $apps = $registry->listApps(null, true);
    $view_cookie = isset($_COOKIE['default_imp_view'])
        ? $_COOKIE['default_imp_view']
        : ($browser->isMobile() && isset($apps['mimp']) ? 'mimp' : 'imp');
    if (isset($apps['dimp']) || isset($apps['mimp'])) {
        $views[] = array('sel' => $view_cookie == 'imp',
                         'val' => 'imp', 'name' => _("Traditional"));
        if (isset($apps['dimp'])) {
            $views[] = array('sel' => $view_cookie == 'dimp',
                             'val' => 'dimp', 'name' => _("Dynamic"));
        }
        if (isset($apps['mimp'])) {
            $views[] = array('sel' => $view_cookie == 'mimp',
                             'val' => 'mimp', 'name' => _("Minimalist"));
        }
    }
}
So, we added $conf[‘user’][‘select_view’] = true to our horde/imp/config/conf.php and that solved it.

After upgrading to 4.2 we had problems deleting emails, from dimp there was no problem, but imp would complain that the link you tried was only valid for 0 seconds. The fix on this page solved that: http://lists.horde.org/archives/imp/Week-of-Mon-20080526/049140.html Mainly, put these lines in horde/imp/config/conf.php:
$conf['server']['cache_folders'] = true;
$conf['server']['token_lifetime'] = 1800;
$conf['server']['cachejs'] = 'none';
$conf['server']['cachecss'] = 'none';
Additionally, we changed our tokens in horde from sql to file.