Hmm.... that is a problem. I know that the forum is designed to log out "inactive" users when they are already logged in (after a 30 min idle time). I just raised that limit to 2 hours, though. I'm not sure what other settings I need to change, but I'm poking around the admin options.
I also updated the cache option that saves your text (when typing replies, I think) in case you accidentally navigate away from the page or the page crashes. It was set to 60 seconds; now it's 120.
By the way, HDNitehawk, what browser are you using?