[Samba] Roaming profiles & only one login p/user ?

[Cor Lem]

Hello,

I have set up roaming profiles succesfully, to be used on 10 w98 client-pc's.

I think that when a single user logs in at two pc's at once, alters his 
settings on two places that the result can be conflicting.

This makes that I would like to set up Samba so that a single user can only 
be logged in from one pc at a time.

Any pointers are greatly apreciated.

Greetz,
Cor Lem