I think the board is busted to the extent that, if you ever log out, you may not be able to log back in again. I logged out of the board from a diferent computer, and it left me in a state of limbo -- I was logged out but not really, and unable to do anything about it.
So if you are logged in, STAY THAT WAY.
I have to transfer the board to a new phpBB3 install when I have the time.