Help! Accounts unable to log

[pimpo at mac.com]

Hi everybody,

I dont understand whats going on with my samba server, I have set up 15 
identical accounts (with different login/passwd), added all of them via 
the smbpasswd and everything, checked the passwords file and all of them 
seem to have a password, and oddly enough there are 4 accounts that are 
not working!, when I try to log using Win 95 I receive a message saying 
that either my password was wrongly spelled or that access to my logon 
server was not allowed.

Any ideas?
please this one is urgent, Im starting to get some shouts from all 
around the office

Thank you

Gonzalo