You installed the PHP-Nuke Forum (which is the phpBB forum starting v.6.5 of PHP-Nuke, see Section 7.1.1), but now,
when you try to access it you get the error:
Solution: In the forum configuration, go to the Cookies section and change the name of the cookie file from "phpbb2mysql " to something more original or unique, like "phpbb2mysql2" . You also need
to have the right cookie domain, i.e. if you have installed the forum under http://yoursite.com/nuke/html, the cookie domain should be http://yoursite.com/nuke/html too.
"What is this session id anyway?", you may ask. This is quite a technical matter and is covered in detail in Chapter 10.
![[Valid RSS]](http://www.ravenphpscripts.com/images/valid-rss.png "Validate my RSS feed"){kind=small}
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