gnus - how to force skip nntp connection at gnus startup

[Pawel]

Hallo Group Members.

When I do M-x gnus,
it always tries to connect to nntp server (that are probably defined 
gnus-select-method):

gnus-select-method is a variable defined in `gnus.el'.
Its value is (nntp "news")

It does it, even when I set:
(setq gnus-select-method  `(nntp nil))

I am not interrested gnus-select-method. I use gnus only for email
through imap (secondary methods).

Is there a way to skip nntp server connection.

best regards,
Pawel