Are there updates available for the erratic application(s)?

If you do not notice improvement after reinstalling your program, please check the software editor's Website for updates.

Is your computer up-to-date?

Malicious programs such as virus and spyware can infect your computer and cause some of your programs to malfunction. To fix this problem and avoid it in the future, make sure you run antivirus and anti-spyware regularly and get the latest updates.

Miscellaneous Troubleshooting

Keyboard & Mouse/Touchpad

My Keyboard Does Not Work

1. The Numeric pad is disabled

When the Num Lock key is active, the Numeric pad can be used to enter numbers, like the keyboard of a calculator. When the [Num Lock] key is not activated the keypad either functions as a second set of cursor keys (on "full-sized" keyboards), or they revert to normal letter keys (on certain compact keyboards).

On some computers, the Num lock icon is shown in the Notification Area or a LED on the keyboard indicates that it is enabled.

Display

The Display Is Not Centred or Gets Wavy

1.The image is smaller or larger than the screen surface.

a.Adjust the monitor display, image size and/or position with the screen controls.

b.If you have an LCD screen, use its optimal resolution. LCD screens are designed to use a specific res- olution. Changing this resolution may cause the display to grow beyond or shrink away from the edges of the screen. (See your monitor documentation).

2.I see thin lines scrolling down the screen, flickering images or wavy displays.

a.Interference from other appliances or magnetic sources may cause irregular images on your screen. b.Switch your computer off and restart it. This should automatically adjust your display.

The magnitude of interference, noise or distortion depends on your screen's proximity to sources such as TV sets, mobile phones, other monitors, refrig- erators, large stereo speakers, power adapters, halogen lighting with built-in power supply or motor driven appliances. Faulty fluorescent light assemblies or the proximity to high voltage lines can also cause distorted images. Place your computer as far as possible from these sources.

If there is no source interference, or removing the source of interference does not alleviate the symptoms, please refer to your monitor documen- tation to perform a series of screen adjustments (image size and position, refresh rate, degauss, etc.). Certain adjustments may not be available, depending on the display technology used.

Sound

Upon Startup, My Computer Emits a Continuous Beeping Sound

1.There is a keyboard or mouse/touchpad detection failure.

2.There is a stuck key on the keyboard or a stuck button on the mouse: a.Switch your computer OFF.

24 - Quick Start & Troubleshooting Guide

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Packard Bell F10 manual Miscellaneous Troubleshooting, My Keyboard Does Not Work, Display Is Not Centred or Gets Wavy