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Toshiba L20/L25 A blank screen appears while watching a DVD-ROM movie or title.

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If Something Goes Wrong

DVD operating problems

5.375 x 8.375 ver 2.3

1If the DVD-ROM or multi-function drive is an external drive,

make sure that the drive’s cable is properly connected to the

computer.

2Verify that the disc is in a format that the drive supports.

3Ensure that the disc is properly inserted in the drive tray.

4Ensure that the Display properties are not True Color (24-

bit). If it is set to 24-bit color, there may be a video

format error. To verify your display settings:

❖Click Start, Control Panel, Appearance and

Themes, and double-click Display.

❖Click on the Settings tab and check the Color

Palette. It should be set to High Color (16-bit).

❖If it is not set to High Color, change the settings to

16-bit color and click OK.

5Clean the disc and try again.

A dirty drive can also cause audio problems. If you have

tried several discs and all fail, consider sending your

drive to an authorized service provider to get it cleaned.

6Verify that your computer recognizes your DVD-ROM

drive. To do this:

Double-click the My Computer icon on the desktop. The

DVD-ROM drive should appear in the list.

7See “Checking device properties” on page 166 for

instructions on using Device Manager to view the DVD-

ROM properties.

8Check the Toshiba Web site for new information on

DVD-ROM drives and their operation.

A blank screen appears while watching a DVD-ROM movie or title.

Disable the Shut off Monitor feature in the Display Properties

using the following steps:

Contents

Main Protection of Stored Data Critical Applications FCC Notice Declaration of Conformity Information Industry Canada requirement FCC requirements Telephone Company Procedures If Problems Arise Disconnection Fax Branding Alarm Equipment Instructions for IC CS-03 Certified Equipment Wireless Interoperability Wireless LAN and your Health Regulatory Information Canada Industry Canada (IC) Europe EU Declaration of Conformity Page USA Federal Communications Commission (FCC) Taiw an Using this Equipment in Japan Device Authorization Radio approvals for wireless devices Europe - Restrictions for use of 2.4 GHz Frequencies in European Community Countries Europe - Restrictions for use of 5 GHz Frequencies in European Community Countries Approved Countries/Regions for use for the Atheros AR5001X Mini PCI Wireless network adapter Approved Countries/Regions for use for the Intel PRO/ Wireless LAN 2100 3B Mini PCI Adapter Approved Countries/Regions for use for the Toshiba Mini PCI Wireless LAN Card Approved Countries/Regions for use for the INPROCOMM IPN2220 Wireless network adapter Bluetooth wireless technology Interoperability Bluetooth wireless technology and your Health Regulatory statements European Union (EU) and EFTA Canada Industry Canada (IC) Taiw an Using this equipment in Japan 2.4FH1 Device Authorization DVD-ROM, multi-function drive safety instructions Location of the required label Copyright Export Administration Regulation Notice Trademarks Page Contents Introduction................................................................................ 35 Chapter 1: Getting Started......................................................... 40 Chapter 2: Learning the Basics................................................. 74 Chapter 3: Mobile Computing.................................................106 Chapter 4: Exploring Your Computers Features.................. 125 Chapter 5: Toshiba Utilities......................................................142 Chapter 6: If Something Goes Wrong................................... 156 Appendix A: Hot Keys.............................................................. 201 Page Introduction 36 This guide Safety icons 38 Other icons used Other documentation Service options Chapter 1 Getting Started Selecting a place to work Creating a computer-friendly environment Keeping yourself comfortable Precautions Page Page Important information on your computers cooling fan Setting up your computer Setting up your software Registering your computer with Toshiba Setting up other devices Connecting to a power source Page Page Charging the main battery Page Using the computer for the first time Opening the display panel Your computers features and specifications Turning on the power Adding memory (optional) Installing a memory module Page Page Page Page Removing a memory module Checking total memory Using the TouchPad Scrolling with the TouchPad Control buttons Disabling or enabling the TouchPad Page Turning off the computer Closing the display panel Using optional external display devices Connecting an external monitor or projector Directing the display output when you turn on the computer Adjusting the quality of the external display Using an external keyboard Using a mouse Connecting a printer Setting up a printer Connecting an optional external diskette drive Caring for your computer Cleaning the computer Moving the computer Using a computer lock Page Chapter 2 Learning the Basics Computing tips Page Using the keyboard Character keys Making your keyboard emulate a full-size keyboard Ctrl, Fn, and Alt keys Function keys Windows special keys Overlay keys Using the overlay to type numeric data Starting a program Starting a program from the Start menu Starting a program from Windows Explorer Starting a program from the Run dialog box Saving your work Saving files File names Using a file extension Printing your work Backing up your work Restoring your work Using the DVD-ROM or multi-function drive Drive components and control buttons DVD-ROM or multi-function drive components Page CD/DVD control buttons Inserting a compact disc Page Removing a disc with the computer on Removing a disc with the computer off Playing an audio CD Playing CDs using Auto-Run Creating a CD Caring for CD or DVD Discs Powering down the computer Using the Turn off computer or Shut down command Shutting down more quickly Starting again after Turn Off Using Hibernation Mode Configuring your computer for Hibernation Using Hibernation Starting again from Hibernation mode Using Standby Mode Page Using Standby Going into Standby mode more quickly Starting again from Standby mode Toshibas online resources Chapter 3 Mobile Computing Toshibas energy-saver design Running the computer on battery power Battery Notice Power management Using additional batteries Charging batteries Charging the main battery Page Charging the RTC battery Monitoring main battery power Determining remaining battery power light Page What to do when the main battery runs low Setting battery alarms Conserving battery power Power profiles Changing the main battery Removing the battery from the computer Inserting a charged battery Taking care of your battery Safety precautions Maximizing battery life Disposing of used batteries Page Traveling tips Chapter 4 Exploring Your Computers Features Exploring the desktop Finding your way around the desktop Icons Start button Taskbar System tray Setting up for communications Determining the COM port Connecting the modem to a telephone line Connecting your computer to a network Accessing a network Setting up the connection Using the Ethernet LAN Port Using Wireless LAN Connectivity An overview of using the Internet The Internet The World Wide Web Internet Service Providers Connecting to the Internet Surfing the Internet Internet features Uploading to, and downloading files from, the Internet Exploring audio features Recording sounds Using a microphone Page Using external speakers or headphones Inserting and removing PC Cards Inserting a PC Card Using PC Cards Hot swapping Hot swapping precautions Chapter 5 Toshiba Utilities TOSHIBA Assist Customizing Your Computer Network Security Mouse utility Hotkey utility TOSHIBA HW Setup Setting user passwords Using an instant password Setting a user password Disabling a user password Using a supervisor password Setting a supervisor password Deleting a supervisor password Using the TOSHIBA Zooming Utility Using the TOSHIBA Touch and Launch utility Page Page TOSHIBA Touch and Launch Settings Disabling or enabling TOSHIBA Touch and Launch Chapter 6 If Something Goes Wrong Problems that are easy to fix Your program stops responding. Your program performs an illegal operation. Problems when you turn on the computer The computer will not start. The computer starts but when you press a key nothing happens. The computer is not accessing the hard disk or the optional external diskette drive. The computer displays the WARNING RESUME FAILURE message. The computer displays the Non-System disk or disk error message. The Windows operating system is not working Using Startup options to fix problems Internet problems My Internet connection is very slow. My browser cannot find the URL address I typed in. My browser cannot find a site I bookmarked. The Windows XP operating system can help you Resolving a hardware conflict A plan of action Resolving hardware conflicts on your own Interrupt Request Channel Direct Memory Access Plug and Play Resolving conflicts Fixing a problem with Device Manager Disabling a device Checking device properties Page Memory problems Power and the batteries The battery indicator light does not come on when you plug in the AC adapter and power cord/cable. The AC adapter and power cord/cable work correctly, but the battery will not charge. The battery appears not to power the computer for as long as it usually does. Keyboard problems Display problems The screen is blank. The screen does not look right. The built-in screen flickers. The display mode is set to Simultaneous and the external display device does not work. Small bright dots appear on your TFT di splay wh en you turn on your computer. Disk drive problems You are having trouble accessing a disk, or one or more files appear to be missing. Error-checking Your hard disk seems very slow. Your data files are damaged or corrupted. DVD-ROM or multi-function drive problems You press the disc eject button, but the drive tray does not slide out. Some discs run correctly but others do not. The disc will not come out of the drive when you click the eject button on the screen. Sound system problems You do not hear any sound from the computer. The computer emits a loud, high-pitched noise. PC Card problems Card Information Structure PC Card checklist Resolving PC Card problems The system does not recognize your PC Card. A PC Card error occurs. Printer problems The printer will not print. The printer will not print what you see on the screen. Modem problems The modem will not receive or transmit properly. The modem is on, set up properly and still will not transmit or receive data. Wireless networking problems Page Page Special considerations for Windows XP Wired Equivalent Privacy (WEP) encryption is not enabled on the wireless access point. The Windows XP wireless management facility does not work. DVD operating problems A blank screen appears while watching a DVD-ROM movie or title. Jumping video lines appear around the DVD-ROM video window. DVD titles, games, or applications appear distorted. The screen saver runs while you are watching a movie or title. Develop good computing habits Save your work frequently. On a regular basis, back up the information stored on your hard disk. Read the users guides. Data and system configuration backup in Windows XP Saving system configuration with Restore Points Backing up your data to CDs with Windows XP Page Page Favorites (bookmarks) for Internet Explorer and other Web browsers General tips for installing hardware and software If you need further assistance Before you contact Toshiba Contacting Toshiba Toshibas Technical Support Website Toshiba voice contact Other Toshiba Internet Web sites Toshibas worldwide offices Toshibas worldwide offices Appendix A Hot Keys Volume Mute Password security Without a password With a password Maintaining security when the battery is not fully charged Standby mode Hibernation mode Display modes Display brightness Disabling or enabling the TouchPad Zooming applications in/out Keyboard hot keys Appendix B Power Cord/Cable Connectors Appendix C Using ConfigFree with your Toshiba Computer Getting Started Starting ConfigFree Page ConfigFree Utilities Connectivity Doctor Page Page Search for Wireless Devices Creating a new wireless connection Page Creating a detected device wireless connection Transferring files using Bluetooth Page Disconnecting from a Bluetooth device Profile Settings Page Page Page ConfigFree SUMMIT Page Page Using ConfigFree SUMMIT Quick Connect Toshiba Wireless Projector Page Direct Link Toshiba Device Using the Automatic Switch Semi-Automatic Switch Feature Page Glossary TECHNICAL NOTE: Some features defined in this glossary may not be available on your computer. Acronyms These acronyms may appear in this users guide. Page Ter ms These terms may appear in this users guide. A B C Page D E F G H I K L M N O P R S T U W Index Numerics A B C D E F H I J K L M N O P R S T U V W