The monitor goes dark after a few minutes.
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.
Screen dimming does not work with some programs. Contact the program’s manufacturer to see if there is a newer version of the program that is compatible with dimming. If the problem persists, you can open the PowerBook control panel and turn off screen dimming.
There is wavy or jittery interference on the external monitor.
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.
You connected a different external monitor and it turns on but doesn’t display an image.
Once you set the resolution for an external monitor, any other external monitor subsequently connected to your PowerBook will attempt to use that resolution. If you cannot set a resolution for the new external monitor that results in an image on the screen, you may need to detach the second monitor, discard the Display Preferences file (in the Preferences folder inside the System Folder), reconnect that monitor, and choose a resolution over again to see a satisfactory image. For instructions, see the Monitors topic area of Mac OS Guide, available in the Guide (h) menu.)
Printers
The computer can’t find the printer.
mMake sure the printer is connected and turned on.
IMPORTANT Make sure that all equipment is turned off before connecting or disconnecting cables.
mThe 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.
110 | Chapter 7 |
