It is a pop-up telling you that you need to check your resolv.conf file. I recently ran into the same problem, and started getting an e-mail from root that says: (See Below) Shortly after I started getting the e-mail...I started getting the pop-up when I log into WHM.
IMPORTANT: Do not ignore this email.
The hostname (xxxxx.xxx.com) resolves to . It should resolve to xxx.xxx.xxx.xxx. Please be sure to correct /etc/hosts as well as the 'A' entry in zone file for the domain.
Some are all of these problems can be caused by
/etc/resolv.conf being setup incorrectly. Please check this file if you
believe everything else is correct.
You may be able to
automaticly correct this problem by using the ' Add an A entry for your
hostname ' under ' Dns Functions ' in your Web Host Manager