how long before you are timed out of AAM?
i logged in and typed a message i was about to log as a new thread and when i clicked "submit new thread" i was told that i wasn't logged in.
then i tried to go back to copy my message so that i could paste it into the new thread and wasn't allowed to.
this happened to me before too & is quite annoying.
i find that io might only get a chance to write a few lines of a message before having to do some work & then come back to continuing the message after a few minutes....