Cannot open Today.nsf with ND6-Client

Yes, it is an old problem, but I still have nor solution for it:

If I try to open my replicated today.nsf locally without being connected to the internet I am not able to read the articles. Why? What do I have to set in order to get what I had alsways without any problem with my R5-Client.

Thanks for any support hint.

Claus Bäumler