cron problem

I have a cronjob that use to work perfectly until recently.
0 */2 * * * lynx -dump http://www.url.com/script.php

It used to run every two hours, and executed the script, but lately I have gotten the error "Your terminal lacks the ability to clear the screen or position the cursor.". Now, if I telnet to the server and manually type
lynx -dump http://www.url.com/script.php it works fine.

Any ideas what could be wrong?
Thanks