one of the hosts on my xp network is continuously broadcasting UDP from port 137 to the default gateway all day long for the past week or so. I know this is a typical netbios port used for file sharing and I cant shut it down because I'm on a workgroup that needs the port open. Any ideas on what could be goin on? The problem is not an issue on any of the other twenty computers, but I did just have to fight off a wave of virus's that intruded my domain.