"bad referral" in logfile. What does that mean?

[Kato]

Hi, please help:

"bad referral" in logfile. What does that mean?
I think something is misconfigured?!

Servername = Our servername
Domainname = Our Domainname
OtherComputer = Some other Computers in our Net.

Logfile:
Sep 17 17:21:47 Servername named[1110]: bad referral (Domainname !<
OtherComputer.Domainname)
Sep 17 17:23:47 Servername named[1110]: bad referral (Domainname !<
OtherComputer.Domainname)
....and so on....

Thanx Kato