Dell 320 If the screen is difficult to read, Check the diagnostic lights - See Diagnostic Lights

Test the monitor — Connect a properly working monitor to the computer, and try using the monitor. If the new monitor works, the original monitor is faulty.

Check the diagnostic lights — See Diagnostic Lights.

Check the card setting — Enter system setup and ensure that Primary Video option is set correctly. Exit system setup and restart your computer (see System Setup).

Run the monitor self-test — Check the monitor documentation for more information.

If the screen is difficult to read

Check the monitor settings — See the monitor documentation for instructions on adjusting the contrast and brightness, demagnetizing (degaussing) the monitor, and running the monitor self-test.

Move the subwoofer away from the monitor — If your speaker system includes a subwoofer, ensure that the subwoofer is at least 60 cm (2 ft) away from the monitor.

Move the monitor away from external power sources — 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.

Adjust the Windows display settings —

1.Click the Start button, click Control Panel, and then click Appearance and Themes.

2.Click Display and click the Settings tab.

3.Try different settings for Screen resolution and Color quality.

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