Networking Problem

Hi,

I have 5 computers on my home network, 4 running Windows 98, and 1 Running Windows XP Pro. These
PCs share a DSL connection via a Linksys Router.
For some reason MY Windows 98 cannot see the Window XP, but have no problem to see the other 3 Windows 98. Also, these 3 Windows 98 have no problem to see MY PC or Windows XP computer on the
network, and the Windows XP have no problem to see these 3 Windows 98 except MY Windows 98.

Can someone please help me on how to go about
solving this problem?

Thank you in advance for all your help,

Thanks,

Thai