Forum:only members!

Hi.
I 'd like to know how can i make my forum available only for members.
For example if a visitor want to read the topics in the forum it won 't be possible beacause she had to became a member first...help!

Hello,

Please go to: Admin panel >> General ( Tab ) >> Forum / Categories & forums > Open a forum, and untick the "guests" box, and ensure it is ticked for members > Save.
Repeat for all other forums

Yes,but i want something like that:when guests first visit my forum they will see one page with a logo or a page which says :"you must become a member to see the forum"

I'm sorry, but that is not possible, however you may suggest it in the suggestions for your forums section