[Samba] yet another (perceived) inconsistency

[joop gerritse]

Just to continue: it is also possible that you can see a server, then you 
click on it, and you see its shares (note that I still do not know why it 
sometimes succeeds, and sometimes not...), and then I want to attach a drive 
letter to a share which I see...
It doesn't work, neither in the GUI, nor in the CLi with NET USE. I forgot the 
exact message, it was in Dutch, but anyway it was quite MS-like, something 
informative like "impossible to assign"