neighbour computers shared folders shown as unspecifed folders

Dear sir,

I have windows XP prof installed on one computer. I have
15 other computers with win98 installed in the
organisation.

when i click my network places in my computer.... all the
shared folders of the other computers shown as unspecified
folders and i can not access them.

When i click "show workgroup computers" all the computers
show up there and i can access them from there...

I want to know the reason why the shared folders of
workgroup computers show up as unspecified folders..???

pls revert back at the earliest.

regards
manish

neighbour computers shared folders shown as unspecifed folders