I just tested it. it's only half-broken
here is the test I did:
login and check on 'remember me on each visit'.
close the browser.
open the browser.
go to the fightingarts forum.
(at first, it looks like you aren't logged in...but actually you are)
go into the forum help section (or any section).
NOW it appears correctly that you are logged in.
weird glitch. maybe Matt can pass that one off to the site admin.