[fel64]

but now I can’t log out of bbpress?

This is because when you click “log out”, it clears the NEW version of the cookies, but when checking if you’re logged in it checks both the new and the old version. The old version is never cleared.

To do that, you have to clear your cookies. In FF, pressing Ctrl + Shift + Del gives you access to clear them, in IE you have to go to Tools > Options or something.

But this probably means it’s working!