The Preferences Window is a Second Life UI element used to edit Second Life's options/properties/settings.
SL 1.10 preferences window - general tab
SL 1.10 preferences window - input & camera tab
SL 1.10 preferences window - network tab
SL 1.10 preferences window - graphics tab
SL 1.10 preferences window - graphics detail tab
SL 1.10 preferences window - adv. graphics tab
SL 1.10 preferences window - chat tab
SL 1.10 preferences window - IM tab
SL 1.10 preferences window - popups tab