Dell Inspiron 1200 Owner's Manual - Page 70

www.dell.com | support.dell.com If the display is difficult to read A D J U S T T H E B R I G H T N E S S - Press and the up-arrow key to increase the brightness and and the down-arrow key to decrease the brightness. M O V E T H E E X T E R N A L S U B W O O F E R A W A Y F R O M T H E C O M P U T E R O R M O N I T O R - If your external speaker system includes a subwoofer, ensure that the subwoofer is at least 60 cm (2 ft) away from the computer or external monitor. E L I M I N A T E P O S S I B L E I N T E R F E R E N C E - Turn off nearby fans, fluorescent lights, halogen lamps, or other appliances. R O T A T E T H E C O M P U T E R T O F A C E A D I F F E R E N T D I R E C T I O N - 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. S E E " E R R O R M E S S A G E S " - If an error message appears, see page 56. 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 page 91). Drivers What Is a Driver? A driver is a program that controls a device such as a printer, mouse, or keyboard. All devices require a driver program. 68 Solving Problems