L i f e B o o k N 6 4 0 0 S e r i e s U s e r ’ s G u i d e
Problem | Possible Cause | Possible Solutions |
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The | A foreign object, such as a | Remove all foreign objects from the keyboard. |
not close. | paper clip, is stuck between the |
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| display and the keyboard. |
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The | If the spots are very tiny and | This is normal; do nothing. |
bright or dark spots. | few in number, this is normal |
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| for a large LCD display. |
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| If the spots are numerous or | Display is faulty; contact your support representative. |
| large enough to interfere with |
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| your operation needs. |
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You have connected an | Your external video device is | See your monitor documentation and the External |
external video device and it | not compatible with your Life- | Monitor Support portions of the Specifications |
does not come on. | Book notebook. | section on page 73. |
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You have connected an | Your BIOS setup is not set to | Toggle the video destination by pressing [Fn] and |
external video device and it | enable your external device. | [F10] together, or check the BIOS setup and enable |
does not display any |
| your external video device. (See Video Features |
information. |
| submenu, located within the Advanced Menu of the |
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| BIOS.) (See BIOS Setup Utility page 27 for more |
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| information) |
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| Your external video device is | Reinstall your device. (See External Video Port |
| not properly installed. | page 49 for more information) |
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| Your operating system soft- | Check your device and operating system |
| ware is not set up with the | documentation and activate the proper driver. |
| correct driver for that device. |
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Miscellaneous Problems |
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Error message is displayed | Application software often | See your application manual and help displays |
on the screen during the | has its own set of error | screens for more information. Not all messages are |
operation of an application. | message displays. | errors some may simply be status. |
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