Dell Precision M2300 (Late 2007) - Manual (Page 104)

Turn off nearby fans, fluorescent lights, halogen lamps, or other appliances.
Rotate the computer to face a different direction —
Eliminate sunlight glare, which can cause poor picture quality.
Adjust the Windows display settings —
1. Click the Start button and then click Control Panel.
2. Click Appearance and Themes.
3. Click the area you want to change or click the Display icon.
4. Try different settings for Color quality and Screen resolution.
Run the Video diagnostics tests —
If no error message appears and you still have a display problem, but the display is not completely blank, run the Video device group in the Dell Diagnostics. If
the problem persists, contact Dell (see
Obtaining Assistance ).
See "Error Messages" —
If an error message appears, see Error Messages .
If only part of the display is readable
Connect an external monitor —
1. Shut down your computer and connect an external monitor to the computer.
2. Turn on the computer and the monitor and adjust the monitor brightness and contrast controls.
If the external monitor works, the computer display or video controller may be defective. Contact Dell (see Obtaining Assistance ).
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