Samsung NP-NC20 User Guide - Page 171

Q When I connect an external display and change the settings to display the screen image on both the LCD and the external display by pressing the Fn + key combination, the screen is not displayed properly. A Press Fn + key combination again. If the screen is still not displayed or only part of the screen is displayed by doing this, that means the LCD resolution is too low or too wide and the external display support the resolution. Right-click over the Desktop, select Properties, select the Settings tab and change the resolution to 800 x 600. Q Switching the MS-DOS command prompt to full screen mode or Windows mode by pressing the + keys does not operate properly. A Pressing the + keys using an USB keyboard, may cause the key input to be recognized as multiple key inputs depending on the keyboard input recognition time. In this case, the MS-DOS command prompt is repeatedly switched to full screen and then to Windows several times. Please press the + keys more quickly, or press the + keys using the system keyboard. Q The Taskbar on the bottom of the screen does not appear when a projector is used as the display device. A This may happen, if the projector does not support LCD resolution. In this case change the resolution to 800 x 600 (recommended) on your computer. Q The shortcut icons are not displayed on the screen even if I press the shortcut key. A The shortcut icons only appear when the Easy Display Manager program is installed. 170