PHP 5.0.5 broke WP

My host, Hytek hosting, just upgraded to PHP 5.0.5. Now, when I try to access ANY page, I get the following error:

Fatal error: Only variables can be passed by reference in /home/ratnest/public_html/wp-includes/gettext.php on line 66

Obviously, the site is at http://ratnest.us.

Is there something I can tell the support people to point them in the right direction, or do I have to move my site again?