Solutions to common problems
The computer is turned on but the screen is dark.
The Macintosh or the monitor is not getting power, a program has darkened the screen, or the monitor controls are not adjusted properly.
mIf you use a screen saver program, press a key or move the mouse to turn off the screen saver.
mCheck the monitor’s brightness control and turn it up if necessary.
mCheck that the monitor is turned on.
mCheck that the power cord is plugged in and firmly connected to the computer and that the electrical outlet has power. The power light on the computer’s front panel should be on.
mIf you have more than one monitor, and only one is dark, check that it is set up correctly in the Monitors control panel.
If you are displaying video from your computer on television, it is normal for your regular monitor to be darkened. See Chapter 8 of this book for more information.
When you start up, a question mark icon appears in the middle of the screen and the desktop doesn’t appear.
mYour computer may be having a problem recognizing a SCSI device. Turn off external SCSI devices and restart.
If the computer starts up after you turn off your SCSI devices, read the section on SCSI devices in Chapter 5 of this manual for information on connecting SCSI devices and assigning SCSI ID numbers.
mThe system software is not installed on the startup hard disk, the system software is damaged, or the hard disk is not working properly.
Continue reading this section for more information.
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