Panasonic Touchbook CF-50 Series Reference Manual page 51

Dealing with Problems
Display
No display after powering
on
The power has not been
turned off, but after a cer-
tain period of time, there
is no display
The cursor cannot be
controlled
An afterimage appears
(e.g., green, red, and blue
dots remain on the dis-
play) or there are dots not
displaying the correct
colors.
The external display no
longer displays properly
The screen becomes dis-
ordered
When you want to display
the fonts or icons at a
larger size
Windows XP
An error occurs or the
computer freezes while
using Dualview.
Fast User Switching function
Some applications do not
work properly
When there is no display to an external display,
• Check your cable connection to the external display.
• Confirm your display is powered on.
• Check the settings for your external display.
Try changing the display by pressing
Has the computer been set to the power-saving mode?
To resume operation of your computer from the condition the power of the display
is off (for energy conservation purposes), press any key unrelated to the direct
triggering of a selection, like Shift .
To save power, your computer may have automatically entered the standby or
hibernation mode. Press the power switch.
Restart the computer by using the keyboard (e.g.,
If an image is displayed for a prolonged period of time, an afterimage may appear.
This is not a malfunction. The afterimage will disappear when a different screen is
displayed.
High-precision and advanced technologies are necessary in the production of color
liquid crystal displays (color LCDs). Therefore, if 0.002% or less of the picture
elements either fail to light or remain constantly lit (that is, more than 99.998% of
elements are functioning properly), no defect is considered to exist.
When an external display is used that is incompatible with the power saving modes of
the computer, the display may not function correctly when the computer enters the
power saving mode. In such cases, turn off the power to the external display.
Changing the number of colors of the display may affect the screen. Restart the
computer.
Windows XP
When using Dualview, use the same display colors for the external display as those
used by the LCD.
Change the settings as follows (for more details, refer to the Windows Help).
Windows 2000
1 Select [Start] - [Settings] - [Control Panel] - [Display] - [Appearance].
2 Select the scheme labeled "large" or "extra large" in [Scheme] to change the font
size, and select [Icon] in [Item] to change the icon size.
Windows XP
1 Select [start] - [Control Panel] - [Appearance and Themes] - [Display] - [Appear-
ance].
2 Select the font size in [Font size], and select [Effects] and then add the check mark
for [Use large icons] to increase the icon size.
If you use a 3D screen saver while in Dualview mode at a high resolution, an error
may occur or the computer may freeze. Under these conditions, do not use a 3D
screen saver.
Windows XP
When switching to a different user with the Fast User Switching function, the following
problems may occur.
• Some applications may not work properly (for example, PDF files may not be printed
properly).
• It may not be possible to set the settings of the display.
• A serial mouse may not work.
If any of the above occur, log on with the administrator authority again, not using the
Fast User Switching function, and try the operation once more.
(Advanced)
Fn + F3 .
).
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