Problems turning on or starting up your computer
The computer is turned on but the screen is dark.
One of the following is probably the cause:
mYou have a screen saver program that darkens the screen when the computer has not been used for a certain period of time.
Press a key or move the mouse to turn off the screen saver.
mYour computer has gone to sleep due to inactivity. “Wake it up” by pressing the Power key (marked with a π) on the keyboard.
mThe monitor’s brightness control (¤) is not adjusted properly. Check the monitor’s brightness control and turn it up if necessary.
mThe monitor’s contrast control (O) is not adjusted properly. Check the monitor’s contrast control and adjust it if necessary.
mThe monitor is not getting power.
Check that the computer’s power cord is firmly connected and plugged into a grounded electrical outlet, and that the outlet has power. If the computer is plugged into a power strip, make sure the power strip is turned on.
Check that the monitor is plugged in and turned on, and that the monitor cable is firmly connected to both the computer and the monitor.
The computer makes an unusual sound at startup.
mIf you hear four tones, try starting up the computer from the system software
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