@grafics: It really seams that you have to chmod you .htaccess file to 777
@travishill: The most strange thing has happened.
i once again unchecked “Prefix your forum area with the Forum Base slug”
and the links started working
but at the same time the forums stopped using my custom templates and reverted to the templates from the child bbpress theme
I checked the checkbox back, and the links still work. But the templates did not revert to my custom templates 
I see that many people in this forum, who have this problem, eventually get it solved, but they cannot explain how
Going fishing my template now…
Nope, im not using buddypress.
All the Forum settings are default, i didnt change anything after instalation.
Archive Slugs
Forums base forums
Topics base topics
Single Slugs
Forum Prefix checked
Forum slug forum
Topic slug topic
Topic tag slug topic-tag
Reply slug reply
User base users
View base view
I tried to access the forum via the original link http://www.8ball.lu/wordpress/?p=3448. But that links changes the line in the address bar to the nice address http://www.8ball.lu/wordpress/forums/forum/one-new-test-forum and it still gives 404 error.
regarding the other plugins, true i have 26 plugins active, which i all use.
Are there any known conflicts with other plugins? Just to know before i will make a clean install.
Thank you
I’m using numeric permalink structure.
Well, i installed my test environment into that subdirectory. But the links see to be created nicely and logically:
to the forum
http://www.8ball.lu/wordpress/forums/forum/second-new-test-forum
to the topic
http://www.8ball.lu/wordpress/forums/topic/testing-topic-2
even if i add a trailing slash at the end of a link, it doesnt work anyway.
I am completely lost here. I have read every post in this forum about the similar problems, but never saw an insuring answer 
1. I dropped the custom theme and activated TwentyTen – still the same error
2. Refreshed the Permalinks – still the same
What do i do wrong? Pretty please.
Lucky
And for me it didnt fix itself. I am not using Buddypress, but i still get the same error 404, when trying to open any forum or topic.
http://www.8ball.lu/wordpress/forums
Hello all,
I am trying to setup bbpress on my test site. I want to replace Simple forum.
I followed BJ’s walkthrough and got it showing on the “forums” page.
From admin interface i created couple of forums, and couple of topics.
I can see the forums on http://www.8ball.lu/wordpress/forums
But when i click on any forum name i get a “page not found” error.
What am i doing wrong?
My parent theme is a custom theme created with Themeframe (im astill working on it, and currently i have only changed the menu). I did not touch yet the default templates.
Thank you.
