Dell Studio 1558 (Early 2010) - Manual (Page 49)

Monitors and Displays
49
Windows Vista
®
1 Right-click an open area of the desktop.
2 Click Personalize. The Personalize appearance and sounds window
appears.
3 Click Display Settings.
4 In the Display Settings window under Resolution, move the slide bar to
the left or right to decrease/increase the screen resolution.
5 Click Apply to check if the selected resolution is ok, if not repeat step 4.
6 Click OK.
Windows
®
XP
1 Right-click an open area of the desktop.
2 Click Properties. The Display Properties window appears.
3 Select the Setting tab.
HINT: To display a program at a specific resolution, both the video card
and the display must support the resolution, and the necessary video
drivers must be installed.
use slide bar to
set resolution