[Samba] \\server is not accesible

[root]

hi I would like to ask regarding to my problem in samba latest version 
Im using Win NT 4.0 and Win98 workstation I already configures smb.conf for 
sharing the folder but the problem when I browse my samba server in winnt 4.0 
the message appear and it says "No services are operating at the destination 
network endpoint on the remote system" what seems to be the problem can you 
give me some tip in this matter

thanks

joel