disabling auto logout??


Hi, I may just be being dumb and missing some configuration!
I want to leave my Mac 'ON' overnight for downloads, but every time I leave it, it logs out automatically. Sometimes Ive left Firefox browser windows open and that has stopped the logout process, but I need my Downloads to stay alive! Ive been setting my Display to turn off, but Im sure thats not affecting anything.

Am I missing something really simple??


p.s. I have 2 user profiles, but the other is always logged out before I start.
Make sure that in System Preferences you look in the Energy Saver pane to look at the automatic slider.