Earlier this week, I've was getting logged out automatically about every hour. This was happening with both IE and Firefox. Once, while trying to post during one of these times, it logged me out between the time it took me to type my reply and the time it took for me to hit the "post" button. It then redirected me to another screen and asked for my login information, but it also displayed a box that said something like, "Stay logged in for [ ] amount of time" and it read 60 in the box. I changed it to 9999, but I still have to log in every once in a while even when I haven't cleared my cookies.