This is quite strange.
While setting up my new home server, I've been checking what network connections look like from it.
Under networking, this is what I get:
The first entry is a desktop machine, running Zenwalk Linux. The second is this machine (Lenova T61), running VL 6.0 Standard. I have (so far) been unable to work out why it has the domain name repeated like that, but it seems to be quite consistent to VL. I get a similar doubling up from 6.0 Light as well (haven't tried the SOHO beta yet).
I've checked /etc/HOSTNAME and /etc/hosts, and the entries look fine. Can anyone suggest where else I should be looking to track this?