Turning on and turning off your handheld To turn on your handheld, press the Power button. The Home screen appears. To turn off your handheld, hold the Power button. You can also click the Turn Power Off icon on your handheld's Home screen. Using the keyboard and trackwheel The handheld includes a keyboard and a trackwheel. The trackwheel helps you navigate, view, and select items on each screen. To scroll though menu items or text, roll the trackwheel. To select functions and menu options, click (press) the trackwheel. / Turning on and turning off your radio When you first receive your handheld, the wireless radio might be turned off. On the Home screen, click the Turn Wireless On icon. The Turn Wireless On icon is an antenna, but when you click the icon, the application name changes to Turn Wireless Off and the icon changes to an airplane. To turn off the radio, click the Turn Wireless Off icon. The airplane icon is a reminder to turn off your handheld radio when you are on an airplane, in a hospital, or in any place in which your handheld might interfere with other radio transmissions and frequencies. Setting the date and time 1. On the Home screen, click the Options icon. The Options screen appears. Click Date/Time. The Date/Time screen appears. In the field that you want to set, press the Space key until the preferred option appears. Click the trackwheel to view the menu. Click Save. Inserting the SIM card Your Subscriber Identity Module (SIM) card stores information about your service plan. You must insert the SIM card into your handheld before you can send and receive messages, place and answer phone calls, or browse web pages. The SIM card fits into a drawer that slides into the handheld...