The Preferences Inactivity Timeout Screen is used to set the Inactivity Timer. If there is no user activity within this timeframe, the user is logged off. Enter a time, in minutes. You can also use the +/- symbols to increase/decrease the time by 5 minute increments, or use the slider for larger increments. When you have configured the time, click the Apply button. The change takes effect immediately. (Range = 15 - 259200 (25 weeks, 5 days), Default = 15).