M e n u f u n c t i o n sCopyright © 2005 Nokia. All rights reserved. 39Navigation keySelect Menu > Settings > Personal shortcuts > Navigation key to selectshortcut functions for the navigation key. Scroll to the desired navigationkey, select Change and a function from the list. To remove a shortcutfunction from the key, select (empty). To reassign a function for the key,select Assign.Display settingsSelect Menu > Settings > Display settings. You can define these settings:• Select Wallpaper to set your phone to display a background image,known as wallpaper, when the phone is in the standby mode.• Select Screen saver > Image to choose a graphic from Gallery. Select inTime-out the time after which the screen saver will be activated. SelectOn to activate the screen saver.• Select Power saver > On to save some battery power. A digital clock isdisplayed when no function of the phone is used for a certain time. See"Power saving" on page 7.• Select Colour schemes to change the color in some display components,for example indicators and signal and battery bars.• Select Menu view to set the way the phone displays the main menu.• Select Operator logo to set your phone to display or hide the operatorlogo.• Select Display Contrast to adjust the display contrast level. Scroll left orright to decrease or increase the contrast level.