samba

[mario remy almeida]

I have configured samba on my redhat 9.0 
with the following setting but :-

********************************************************************

[global]
    ; Basic server settings
    netbios name = nio
    workgroup = almeida

    ; we should act as the domain and local master browser
    os level = 64
    preferred master = yes
    domain master = yes
    local master = yes
    
    ; security settings (must user security = user)
    security = user
    
    ; encrypted passwords are a requirement for a PDC
    encrypt passwords = yes
    
    ; support domain logons
    domain logons = yes
    
    ; where to store user profiles?
    logon path = \\%N\profiles\%u
    
    ; where is a user's home directory and where should it
    ; be mounted at?
    logon drive = H:
    logon home = \\margarita\%u
    
    ; specify a generic logon script for all users
    ; this is a relative **DOS** path to the [netlogon] share
    logon script = logon.bat

; necessary share for domain controller
[netlogon]
    path = /usr/local/samba/lib/netlogon
    read only = yes
    write list = ntadmin
    
; share for storing user profiles
[profiles]
    path = /export/smb/ntprofile
    read only = no
    create mask = 0600
    directory mask = 0700

********************************************************************

but i get either one of the error
1)
 " no domain server found to validate your password you will not have   access to some of the network resources "

          OK    CANCEL       
2)
incorrect parameters

These 2 errors I get when I try to join windows 95 & 98 clients



Please give me the solution for this