Acer 4120 Frequently asked questions, Nothing appears on the screen, Image is not full-screen

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Frequently asked questions

The following is a list of possible situations that may arise during the use of your computer. Easy solutions are provided for each one.

I turned on the power, but the computer does not start or boot up.

Look at the power indicator:

If it is not lit, no power is being supplied to the computer. Check the following:

If you are using on the battery, it may be low and unable to power the computer. Connect the AC adapter to recharge the battery pack.

Make sure that the AC adapter is properly plugged into the computer and to the power outlet.

If it is lit, check the following:

Is a non-bootable (non-system) disk in the external USB floppy drive? Remove or replace it with a system disk and press <Ctrl> + <Alt> + <Del> to restart the system.

Nothing appears on the screen.

The computer's power management system automatically blanks the screen to save power. Press any key to turn the display back on.

If pressing a key does not turn the display back on, three things might be the cause:

The brightness level might be too low. Press <Fn> + <> (increase) to adjust the brightness level.

The display device might be set to an external monitor. Press the display toggle hotkey <Fn> + <F5> to toggle the display back to the computer.

If the Sleep indicator is lit, the computer is in Sleep mode. Press and release the power button to resume.

Image is not full-screen.

Each computer display has a different native resolution depending on the screen. If you set the resolution lower than this native resoution, the screen expands to fill the computer display. Right-click on your Windows desktop and select Properties to bring up the "Display Properties" dialog box. Then click on the Settings tab to make sure that the resolution is set to the appropriate resolution. Resolutions lower than the specified resolution are not full-screen on the computer or on an external monitor.

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Contents Extensa 4420/4120 Series Users GuidePage Turning the product off before cleaning Information for your safety and comfortSafety instructions Using electrical power Guidelines for safe battery usage Product servicingReplacing the battery pack Potentially explosive environmentsOperating environment Additional safety informationTelephone line safety Medical devicesVehicles Potentially explosive environmentsEmergency calls Disposal instructions Mercury advisoryTips and information for comfortable use Finding your comfort zone Taking care of your visionDeveloping good work habits Your guides Basic care and tips for using your computerFirst things first Turning your computer on and offTaking care of your computer Taking care of your AC adapterPlease refer to Frequently asked questions on Taking care of your battery packCleaning and servicing Xvi Contents Using a computer security lock Audio Acer eRecovery Management Page Acer Empowering Technology Empowering Technology passwordAcer eNet Management Empowering Technology To create a new power plan Acer ePower ManagementUsing power plans To switch between power plansTo delete a power plan Battery statusAcer ePresentation Management Acer eDataSecurity Management for selected models Acer eLock Management Empowering Technology Acer eRecovery Management Empowering Technology Acer eSettings Management Windows Mobility Center for Windows Vista only Empowering Technology Description Your Acer notebook tourFront view Easy-launch buttons on page 26 for more details Launch buttons on page 26 for more detailsClosed front view Icon DescriptionLeft view # Icon DescriptionRight view Rear viewBase view Specifications English English English Indicators Icon Function DescriptionIcon Easy-launch button Default application Easy-launch buttonsIcon Productivity key Default application Touchpad Touchpad basicsFunction Left Right Main touchpad Center button Button Lock keys and embedded numeric keypad Using the keyboardDesired access Num Lock on Num Lock off Lock key DescriptionWindows keys KeyDescriptionHotkeys Fn + → Hotkey Icon Function Description Fn + ↑Fn + ↓ Fn + ←US dollar sign Euro symbolSpecial keys Ejecting the optical CD or DVD drive tray Using a computer security lock Adjusting the volume AudioUsing the system utilities Acer GridVista dual-display compatibleLaunch Manager Select Tasks & Scans Norton Internet SecurityHow do I check for viruses? NTI Shadow Image is not full-screen Frequently asked questionsNothing appears on the screen Infrared port does not work No audio is heard from the computerKeyboard does not respond Printer does not workWant to set up my location to use the internal modem Before you call Requesting serviceInternational Travelers Warranty ITW Maximizing the batterys life Battery packBattery pack characteristics Installing and removing the battery pack Optimising battery life Charging the batteryChecking the battery level Battery-low warning Situation Recommended ActionMoving around Disconnecting from the desktopTaking your notebook PC with you Preparing the computerWhat to take with you Taking the computer homeWhat to bring to meetings Special considerations Setting up a home officeTraveling with the computer Traveling internationally with the computer What to bring with youSecuring your computer Using a computer security lockUsing passwords Entering passwords Setting passwordsFax/data modem Expanding through optionsConnectivity options Built-in network feature Fast Infrared FIRUniversal Serial Bus USB Ieee 1394 portEjecting a PC Card PC Card slotInserting a PC Card Installing memory Bios utilityBoot sequence Using software Enable disk-to-disk recoveryPassword Playing DVD moviesAcer eRecovery Management Create backupBurn backup disc Restore and recoveryError messages Corrective action Troubleshooting tipsError messages English Operation conditions Regulations and safety noticesFCC notice Declaration of Conformity for EU countries Modem noticesRemarque à lintention des utilisateurs canadiens TBR List of applicable countriesEnglish Macrovision copyright protection notice Laser compliance statementLCD pixel statement European Union EU Article 3.1a Health and SafetyRadio device regulatory notice General Article 3.1b EMCEnglish FCC RF safety requirement English LCD panel ergonomic specifications USA Acer Computer Shanghai Limited EN60950-12001 EN600652002 applied to models with TV functionIndex English