How to fix "Call to undefined function phptemplate_get_ie_styles()" error when running Drupal's update.php
When running the update script on a new a new installation of Drupal version 6.20, I was getting this:
<!--[if lt IE 7]--> Fatal error: Call to undefined function phptemplate_get_ie_styles() in htdocs/themes/garland/maintenance-page.tpl.php on line 23