[. . . ] Macrovision: This product incorporates copyright protection technology that is protected by U. S. patents and other intellectual property rights. Use of this copyright protection technology must be authorized by Macrovision, and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision. Sony Corporation reserves the right to make any modification to this manual or the information contained herein at any time without notice. The software described herein is governed by the terms of a separate user licence agreement. [. . . ] Besides that, there are other typical LAN security mechanisms to ensure privacy, such as: password protection, end-to-end encryption, virtual private networks, and authentication. Wireless LAN devices using the IEEE 802. 11a standard and the ones using the IEEE 802. 11b standard cannot communicate because the frequencies are different. The standard access is 11 Mbps, or about 30 to 100 times faster than a standard dial up. Using your VAIO computer Hardware Guide nN 40 Communicating without Access Point (ad-hoc) An ad-hoc network is a network in which a local network is created only by the wireless devices themselves, with no other central controller or Access Point. You can set up an ad-hoc network easily at home. To communicate without Access Point (ad-hoc), proceed as follows: 1 2 3 4 5 6 7 Turn on the Wireless LAN switch on the front side of the computer. Double-click the network icon in the taskbar displaying Wireless Network Connection. Select the Data encryption (WEP enabled) check box. Using your VAIO computer Hardware Guide nN 41 8 9 10 11 12 13 14 15 16 Select the Network Authentication (Shared mode) check box. The network key should be 5 or 13 ASCII characters or 10 or 26 hexadecimal characters long. Your computer is ready to communicate with another computer. * If you want to communicate between two or more computers, you need to configure all these computers in exactly the same way. This means that you need to enter the same Network name (SSID) and the same Network key on all computers as on the first computer you configure. ** ASCII: The basis of character sets used in almost all present-day computers. ASCII is a code for representing English characters as numbers, with each letter assigned a number from 0 to 127. The Hibernating screen appears and the computer enters Hibernate mode. In the Turn off computer screen, hold down the <Shift>-key and press Hibernate. To return to Normal mode, proceed as follows: Turn on the computer by pressing the power button. The computer returns to its previous state. Using your VAIO computer Hardware Guide nN 46 If you press the power button for more than four seconds, the computer will switch off automatically. It takes more time to return to normal mode from Hibernate mode than from Standby mode. Do not move the computer until its power indicator turns off. Troubleshooting power management The power management setting is not responding Your computer's operating system may become unstable if a lower power state, such as Hibernate is initiated, and then changed before the computer completely enters the lower power state. To restore the computer to its normal operating stability, proceed as follows: 1 2 3 Close all open applications. Press <Ctrl>+<Alt>+<Delete> simultaneously and select Restart from the drop-down list. If the procedure does not work, press and hold the power button for four seconds or longer to shut down the computer. Using your VAIO computer Hardware Guide nN 47 Managing power with PowerPanel The PowerPanel utility controls the power management of your computer and provides key information about system activity and battery life. The automatic power management selects the most advantageous profiles, or lets you customise the profiles you choose, according to your own needs, with the goal of extended battery life. PowerPanel has the following features: Automatic Profile Selection (APS) based on the currently active application; Ability to select specific Power Profiles manually from the menu; Ability to edit and create new profiles; Ability to display detailed battery information; It works in harmony with your Windows settings. [. . . ] Use only specified peripheral equipment and interface cables; otherwise, problems may occur. If the computer is brought directly from a cold location to a warm one, moisture may condense inside your computer. In this case, allow at least one hour before turning on your computer. As you may lose important data once your computer is damaged, you should back up your data regularly. [. . . ]