40 | TroubleshootingProduct Specific ProblemsSpecificSymptomsWhat YouExperiencePossible SolutionsScreen image istoo smallImage iscentered onscreen, but doesnot fill entireviewing area• Check the Aspect Ratio setting in the Displaymenu OSD.• Reset the monitor to factory settings.Cannot adjustthe monitor withthe buttons onthe front panelOSD does notappear on thescreen• Turn off the monitor, unplug the monitor powercable, plug it back, and then turn on the monitor.No Input Signalwhen usercontrols arepressedNo picture, theLED light is white• Check the signal source. Ensure the computer isnot in the power saving mode by moving the mouseor pressing any key on the keyboard.• Check whether the signal cable is plugged inproperly. Re-plug the signal cable if necessary.• Reset the computer or video player.The picture doesnot fill the entirescreenThe picturecannot fill theheight or widthof the screen• Due to different video formats (aspect ratio) ofDVDs, the monitor may display in full screen.• Run the built-in diagnostics.