[Samba] Workgroup shows up, but not the computer

[Wesley Hobbie]

I am running Mandrake 10.0 Official PowerPack, I have Samba 3.0.2a and my
Windows XP PCs can see the Workgroup but there is no PC in the Workgroup.
However, I can type \\<computername> and see all of the shared folders and
printers.  After doing this the Network Neighborhood still does not show the
computer in the Workgroup.  Does anyone know why this is occurring and how
to fix it?