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58 | TroubleshootingMissing Color Picture missingcolor∞ Perform monitor self-test feature check.∞ Ensure that the video cable connecting the monitorto the computer is connected properly and issecure.∞ Check for bent or broken pins in the video cableconnector.Wrong Color Picture color notgood∞ Change the Color Setting Mode in the ColorSettings OSD to Graphics or Video depending onthe application.∞ Try different Preset Modes in Color settings OSD.Adjust R/G/B value in Custom Color in Colorsettings OSD.∞ Change the Input Color Format to RGB or YPbPr inthe Color settings OSD.∞ Run the built-in diagnostics.Image retentionfrom a staticimage left on themonitor for a longperiod of timeFaint shadow fromthe static imagedisplayed appearson the screen∞ Use the Power Management feature to turn offthe monitor at all times when not in use (for moreinformation, see Power Management Modes).∞ Alternatively, use a dynamically changingscreensaver.Wireless mouseis not working orlaggingDo not respond orresponds slowly∞ Increase the distance between the USB 3.0peripherals and the wireless USB receiver.∞ Position your wireless USB receiver as close aspossible to the wireless mouse.∞ Use a USB-extender cable to position the wirelessUSB receiver as far away as possible from the USB3.0 port.Video Ghosting orOvershootingMoving imageappears to havetrailing shadow orbright edge.∞ Change the Response Time in the Display OSD toFast or Normal depending on your application andusage.Product-Specific ProblemsSpecificSymptomsWhat YouExperiencePossible SolutionsScreen image istoo smallImage is centeredon screen, butdoes not fill entireviewing area∞ Check the Aspect Ratio setting in the Displaysettings OSD.∞ Reset the monitor to Factory Settings(FactoryReset) .Cannot adjust themonitor with thebuttons on theside panelOSD does notappear on thescreen∞ Turn Off the monitor, unplug the power cord, plugit back, and then turn On the monitor.∞ Check whether the OSD menu is locked. If yes,press and hold the button above the Power buttonfor 10 seconds to unlock (for more information, seeLock).