Dell OptiPlex 360 (Late 2008) - Manual (Page 155)

Troubleshooting 155
• If the power light is blinking, press a key on the keyboard or move the mouse to
resume normal operation.
T
ES T T H E EL E CT R I C A L O U T L E T
— Ensure the electrical outlet is working by testing it
with another device, such as a lamp.
C
H E C K T H E D I A G N O S T I C L I G H T S
— See "Power Lights" on page 123.
C
H E C K T H E M O N I T O R S E T T I N G S
— See the monitor documentation for instructions
on adjusting the contrast and brightness, demagnetizing (degaussing) the monitor,
and running the monitor self-test.
M
O VE TH E SU BWO O FE R A W A Y F R O M T H E M O N I T O R
— If your speaker system
includes a subwoofer, ensure that the subwoofer is positioned at least 60 centimeters
(2 feet) away from the monitor.
M
O VE TH E M O N I T O R A W A Y F R O M E X T ER N A L PO WE R S O U R C E S
— Fans, fluorescent
lights, halogen lamps, and other electrical devices can cause the screen image to
appear shaky. Turn off nearby devices to check for interference.
R
O T A T E T H E M O N I T O R T O E L I M I N A T E S U N L I G H T GL ARE A N D P O S SI B L E
I N T E RF E RE N C E
A D J U ST T H E W INDO WS D I S P L A Y S E T TI N G S —
Windows XP:
1 Click Start Control Panel Appearance and Themes.
2 Click the area you want to change or click the Display icon.
3 Try different settings for Color quality and Screen resolution.
Windows Vista:
1 Click Start Control PanelHardware and SoundPersonalization
Display Settings.
2 Adjust Resolution and Colors settings, as needed.
3D image quality is poor
C
H E C K T H E M O N I T O R S E T T I N G S
— See the monitor documentation for instructions
on adjusting the contrast and brightness, demagnetizing (degaussing) the monitor,
and running the monitor self-test.
Only part of the display is readable
C
O N N E C T A N O T H E R M O N I T O R
—
1 Shut down your computer and connect another monitor to the computer.
2 Turn on the computer, the monitor, and adjust the monitor brightness and
contrast controls.