Dell Precision T7400 (Late 2007) - Manual (Page 52)

52 Quick Reference Guide
A D J U S T T H E W I N D O W S D I S P L A Y S E T T I 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 G R A P H I C S C A R D P O W E R C A B L E C O N N E C T I O N — Ensure that the power
cable for the graphics card(s) is correctly attached to the card.
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 screen is readable
T U R N O N T H E C O M P U T E R A N D T H E M O N I T O R A N D A D J U S T T H E M O N I T O R
B R I G H T N E S S A N D C O N T R A S T C O N T R O L S — If the monitor works, the graphics
card(s) may be defective. Contact Dell (see "Contacting Dell" in your User’s Guide).