I get an Invalid_Session error whenever I try to post from within the AOL client, and I know other people who get either this error or who appear not to be logged in and get prompted to log in, repeatedly, whenever they try to post.
If there's anyone out there who's posting from within the AOL client, I'd like to hear from you. You can reach me at "GeorgeKnighton AT aol DOT com" so I can find out how you're getting it to work.
It appears to be a problem with how and where phbb places the cookie, but I'm afraid to change that out of fear of preventing everyone else from being able to post.
I have played with every manner of privacy and security settings, but nothing will allow it to work while inside the client software.
This problem does not exist on any other message board.
I have used every version of AOL from 6.0 through the most recent versions (including the ones I'm not allowed to talk about), and the problem exists with every version.