Apple Duo 270C The computer doesnt go to sleep automatically., The screen The screen looks blurred or out of focus., The screen is too dark., The screen is flickering.

The computer doesn’t go to sleep automatically.
nYou may have dragged the slider to Never in Custom view of
the PowerBook control panel. Drag the slider to a lower
setting.
nYou may be connected to a shared disk on the network. If you
are not using the information on the shared disk, disconnect
from it.
nThe printer/modem port may be in use. Quit your
telecommunications program or turn off background printing
in the Chooser (if the documents you’re printing can wait
until later).
nOne or more applications may be doing work in the
background. You can choose Sleep from the Special menu to
override them.
nThe computer does not go to sleep if it is being used in a
Duo Dock.
nThe computer does not go to sleep if you are using it with a
Duo MiniDock and
man external monitor or SCSI device is attached, or
myou started or restarted the computer after connecting it.
See Chapter 6 for more information about batteries and power
consumption.
The screen
The screen looks blurred or out of focus.
nThe viewing angle may not be optimal. Tilt the display on its
hinge until the screen looks better.
The screen is too dark.
nWhen you first turn on your computer, it may take several
minutes for the screen brightness to “warm up,” especially if
you’ve chosen a high setting.
nThe screen brightness or contrast may not be optimal for the
surrounding lighting. Adjust the brightness or contrast setting.
nThe screen dims automatically when the battery starts to run
low. You may need to recharge or replace the battery before
you can turn up the brightness.
The screen is flickering.
nThis problem sometimes occurs when your screen is set to
display the maximum number of grays. Try adjusting the
contrast control, or select fewer grays in the Monitors control
panel.
284 Quick Reference