Solving Problems 83If only part of the display is readableScanner ProblemsR 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.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 —1 Click the Start button and 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 80.C O N N E C T A N EX T E R N A L M O N I T O R —1 Turn off your computer and connect an external monitor to the computer.2 Turn on the computer and the monitor, and adjust the monitor brightness andcontrast controls.If the external monitor works, the computer display or video controller may bedefective. Contact Dell (see page 126).C H E C K T H E P O W E R C A B L E C O N N E C T I O N — Ensure that the scannerpower cable is firmly connected to a working electrical power source and that thescanner is turned on.C H E C K T H E S C A N N E R C A B L E C O N N E C T I O N — Ensure that the scannercable is firmly connected to the computer and to the scanner.U N L O C K T H E S C A N N E R — Ensure that your scanner is unlocked if it has alocking tab or button.R E I N S T A L L T H E S C A N N E R D R I V E R — See the scanner documentation forinstructions.
