Problems with GetText

Hello, I'm having a problem with GetText. I can't figure out why it's not translating and I was hoping someone could suggest something I could test. I made the following test program: <?php

    setlocale(LC_ALL, 'es');
    bindtextdomain('messages', '/home/theingot/public_html/locale');
    textdomain('messages');
    echo "English: About us<br/>";
    echo "Spanish: "._('About us');
    echo "<hr/>";
    phpinfo()

?> - phpinfo() says that GetText support is enabled. - The 'About us' is not translated. - See for yourself: http://theingots.org/test.php - I've checked that the .po file is in /home/theingot/public_html/locale/es/LC_MESSAGES/messages.po - The file is readable and has a translation for 'About us'. In addition, gettext *used* to work before, when we were using a different server. I don't know what might have changed on the server that would keep gettext from working, given what phpinfo() says. Can anyone suggest something else I should test to isolate the problem? Btw: I don't have direct control of the server, but I can ask our web host to make changes and often they will. Thanks for the help. Cheers, Daniel.