Apple Macintosh PowerBook 1400 - Manual (Page 104)

The pointer won’t move from one monitor to another.
m The pointer moves between monitors in the area where the monitor icons
touch in the Monitors & Sound control panel. Open the Monitors & Sound
control panel and check that the positions of the monitor icons match the
positions of the actual monitors. If not, drag the icons until they are
positioned as you want them. (See the “Monitors” topic area of Mac OS
Guide for instructions on using the Monitors & Sound control panel.)
The monitor goes dark after a few minutes.
m Screen dimming may be turned on. Move the pointer to restore the screen’s
brightness. You can change the interval before screen dimming takes effect
in the PowerBook control panel.
The computer freezes when screen dimming takes effect.
m Screen dimming does not work with some programs. Open the PowerBook
control panel and turn off screen dimming.
There is wavy or jittery interference on the external monitor.
m This interference may be generated by a magnetic field. If the monitor is
near another piece of equipment (such as a TV, speakers, or another
monitor), move the monitor away from the equipment.
Printers
The computer can’t find the printer.
m Make sure the printer is connected and turned on.
IMPORTANT Make sure that all equipment is turned off before connecting or
disconnecting cables.
m The printer may not be selected in the Chooser. Open the Chooser and
select the printer you want to use. If the printer is connected to a port,
make sure the correct port is selected.
m Reset the parameter RAM. (See “The Computer Makes an Unusual Sound
at Startup” in the section “Problems Starting Up the Computer” earlier in
this chapter for instructions.) Then select the printer in the Chooser and try
printing again.
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