LOG alert not showing yellow

I have a small problem. I've set up monitoring of the /var/log/messages logfile to search for the string "authentication failure" and alert with a yellow button in the MSG column. I can see the error displayed when I click on the button below the Msg column header but it does not turn yellow.

Below is the entry in the clients-local.cfg file:

[batman]

log:/var/log/messages:10240

ignore MARK

This is the entry in the hobbit-clients.cfg file:

HOST=batman

    LOG     /var/log/messages       authentication failure  color=yellow

Why doesn't this give me a yellow alert.

Thanks

Robert Manocchia

UNIX System Administrator

IDEXX Laboratories

207 556-6860

EMail Robert-Manocchia at idexx.com