error associated with wp-l10n.php

[30-Sep-2004 10:02:04] PHP Warning: Missing argument 1 for _e() in http://www.domain.gov.uk/dir1/dir2/newsfeed/wp-includes/wp-l10n.php on line 41
Our server is throwing up the following error, and even though WP is working fine, I’d really like to solve this.
Thanks in advance!
Jamblo