Click on Settings and the window below will be seen. Default for the Screen Saver, Minutes before Screen Saver starts, Seconds of display for each frame, Ect. Below is effects for Wallpaper, this window appears when wallpaper is clicked from the setting menu. Now if you put in a password and forget it I can't help you. Its always a good idea to start a file listing all your passwords.
Effects controls the different effects as each frame starts.
The effects can be changed by clicking on the ones that's not desired.