[Samba] Windows briefcase on samba share

[MAL]

Trying to create a windows briefcase from Windows XP, on a read/write 
samba share does not work.  Instead of a briefcase "special" icon, you 
get a standard folder.  Inside it is a desktop.ini and a file with the 
same name as the directory.

Much googling has turned up nothing but a few posts saying "make the 
folder read only".  Windows creates the folder as read only anyway, so 
I'm stuck.

I read a post saying it was something to do with profiles.  I don't know 
any more than that, can someone shed light?

Cheers,
MAL