Thanks, didn't think so. Couldn't find it in the setup menu, anyhow.  I just wanted to ditch NetBios over TCPIP and use SMB alone for file sharing etc. on the network in my office. It's only got 4 workstations, so it's not worth the effort of setting up a local DNS server, so I will just live with all that NetBios traffic slowing things down a little. Or maybe just go to static IP addresses and host files.