Sony VGNP798KQ - page 121

121

Troubleshooting >

Computer

Why doesn't my screen turn off after the automatic turn-off time has passed?

Some software applications or screen savers are designed to temporarily disable the feature of your operating system that

turns off the computer screen or places the computer into Sleep mode af ter a certain period of inactivity. To solve this

problem, exit the running software application(s) or change the current s creen saver.

What should I do if I cannot boot my computer from the external device connected to the

computer?

To boot your computer from the external device, for example the USB flopp y disk drive or the USB optical disc drive, you

need to change the boot device.

Turn on your computer and press the F11 key when the VAIO logo appears.

Contents

Main Contents Page Before Use How to find specifications Finding More about Your VAIO Computer 1. Printed Documentation 2. On-screen Documentation Page 3. Support Web Sites 4. Customer Information Center 5. In Store Service & Support (available in USA only) Ergonomic Considerations Page Getting Started Locating Controls and Ports Locating Controls and Ports Take a moment to identify the controls and ports shown on the following pages. Front Locating Controls and Ports Back Right Left 17 About the Indicator Lights About the Indicator Lights Your computer is equipped with the following indicator lights: Indicator Functions Connecting a Power Source Using the AC Adapter To use the AC adapter Using the Battery Pack Installing/Removing the Battery Pack To install the battery pack Page To remove the battery pack Page Charging the Battery Pack To charge the battery pack Page Extending Your Battery Life Shutting Down Your Computer Safely To shut down your computer Using the Power Saving Modes Using Sleep Mode To activate Sleep mode To return to Normal mode Using Hibernate Mode To activate Hibernate mode Updating Your Computer Using Your VAIO Computer Page 32 Using the Keyboard Combination/Feature Function Page Page Using the Pointing Device Using Special-function Buttons Using the Instant Mode Starting the Instant Mode To start the Instant Mode Exiting the Instant Mode Sharing Bookmarks between the Instant Mode and the Internet Explorer Using the Built-in Camera To use the preinstalled image capture software Using "Memory Stick" Before You Use "Memory Stick" Inserting and Removing "Memory Stick" To insert "Memory Stick" Page To remove "Memory Stick" Formatting "Memory Stick" To format "Memory Stick" Page Notes on Using "Memory Stick" Using Other Modules / Memory Cards Using the SD Memory Card Before you use the SD memory card To insert an SD memory card Page To remove an SD memory card Notes on Using Memory Cards General notes on using the memory card Notes on using the SD memory card Using the Internet Using the Network (LAN) Using the Wireless LAN To use the wireless LAN function Using the Wireless LAN Page Using the Bluetooth Function To use the Bluetooth function Bluetooth Security Communicating with Another Bluetooth Device To communicate with another Bluetooth device Notes on Using the Bluetooth Function Page Viewing One-segment Broadcasts To launch the VAIO Mobile TV Using Peripheral Devices Using the Noise Canceling Headphones Before You Use the Noise Canceling Headphones Page Connecting the Noise Canceling Headphones To connect the noise canceling headphones Adjusting the Effect of the Noise Canceling Function To adjust the effect of the noise canceling function What to do if the icon and the balloon do not appear To display the balloon message and the icon Connecting a Display/LAN Adapter Locating Ports on the Display/LAN Adapter Connecting the Display/LAN adapter to Your Computer To connect the display/LAN adapter to your computer Connecting an Optical Disc Drive Connecting an Optical Disc Drive To connect an optical disc drive Connecting External Speakers or Headphones To connect external speakers Page Connecting a Computer Display or a Projector To connect a computer display or a projector Using the VAIO Presentation Support To use the VAIO Presentation Support Selecting Display Modes To select a display mode with the Fn+F7 keys To select a display mode from the display settings Using the Multiple Monitors Function To use the Multiple Monitors function Connecting a USB Device To connect a USB device Notes on connecting a USB device Customizing Your VAIO Computer Setting the Password Adding the Power-on Password To add the power-on password (machine password) To add the power-on password (user password) Changing/Removing the Power-on Password To change or remove the power-on password (machine password) To change or remove the power-on password (user password) Adding the Hard Disk Password To add the hard disk password Changing/Removing the Hard Disk Password To change the hard disk password To remove the hard disk password Using Intel VT To enable Intel VT Using the VAIO Control Center To use the VAIO Control Center Using the VAIO Power Management Selecting a Power Plan To select a power plan To change the power plan settings Protecting the Hard Disk Activating VAIO HDD Protection To activate VAIO HDD Protection Precautions Safety I nformatio n Computer Power Source Battery Pack Page Page Care and Maintenance Information Computer LCD Screen Built-in Camera Discs Handling Your Computer Page Page Handling the LCD Screen Using the Power Source Handling the Built-in Camera Page Using the Battery Pack Handling "Memory Stick" Handling the Built-in Storage Device To avoid damaging your hard disk drive To avoid damaging your solid state drive Handling the Display/LAN Adapter To attach the display/LAN adapter to the AC adapter Troubleshooting Page Computer What should I do if my computer does not start? What should I do if the green power indicator light turns on but my screen remains blank? What should I do if my computer or software stops responding? Why doesn't my computer enter Sleep or Hibernate mode? To restore your computer to Normal mode What should I do if the charge indicator light is blinking fast and my computer does not start? Page What should I do if my game software does not work or it keeps crashing? What should I do if I cannot remember the power-on password? How can I change the boot device order? Page How do I reduce the volume of the recovery partition? How do I check the volume of the recovery partition? Why doesn't my computer respond fast enough while Windows Aero is running? System Security How can I protect my computer against security threats, such as viruses? How do I keep my antivirus software updated? Battery Page Instant Mode What should I do if the Instant Mode does not start? What should I do if my computer screen (LCD) goes blank? Built-in Camera Why does the viewfinder show no images or poor-quality images? Why are captured images poor in quality? What should I do if captured images contain dropped frames and audio interruptions? Page Networking What should I do if my computer cannot connect to a wireless LAN access point? What should I do if I cannot access the Internet? Why is the data transfer speed slow? How do I avoid data transfer interruptions? What are channels? Why does the network connection stop when I change the encryption key? Bluetooth Technology What should I do if other Bluetooth devices cannot find my computer? What should I do if I cannot find the Bluetooth device I want to communicate with? What should I do if other Bluetooth devices cannot connect to my computer? Why is my Bluetooth connection slow? Page What should I do if I do not hear sound from my headphones or audio/video controller? Display Why did my screen go blank? What should I do if I do not see proper images or videos? Why doesn't my screen display a video? What should I do if my screen is dark? Page Printing What should I do if I cannot print a document? Microphone What should I do if my microphone does not work? How can I prevent microphone feedback? Speakers What should I do if I do not hear sound from the built-in speakers? What should I do if my external speakers do not work? Pointing Device What should I do if my pointing device does not work? Keyboard What should I do if the keyboard configuration is wrong? What should I do if I cannot enter certain characters with the keyboard? Floppy Disks Why doesn't the Safely Remove Hardware icon appear on the taskbar when the drive is connected? What should I do if I cannot write data to a floppy disk? Audio/Video How do I turn off the Windows startup sound? How do I change the sound output device? Page "Memory Stick" Peripherals What should I do if I cannot connect a USB device? Trademarks Page Notice