Probably torsten.
Your right and its a pain to get to that stage then you have to have to restart from scratch.
Samba has been relatively sensitive all through the 3.0 series for me.
So its kid gloves.
It works if you do it in steps and all, it makes some fstab entries which I always thought would take a reboot.
I am not sure why on certain modules it doesn't reboot rather than wasting someones time
Its not that much of a wait?
Would like to know how you get on?
The big modules reboot before and after is just a tip but it works.