OSD Warning MessagesA warning message may appear on the screen indicating that the monitor is out of sync.This means that the monitor cannot synchronize with the signal that it is receiving from the computer. Either the signal is too high or too low for the monitor touse. See Specifications for the Horizontal and Vertical frequency ranges addressable by this monitor. Recommended mode is 1366 X 768 @ 60Hz.Occasionally, no warning message appears, but the screen is blank. This could also indicate that the monitor is not synchronizing with the computer.See Troubleshooting for more information.Setting the Optimum Resolution1. Right-click on the desktop and select Properties.2. Select the Settings tab.3. Set the screen resolution to 1366x 768.4. Click OK.If you do not see 1366 x 768 as an option, you may need to update your graphics driver. Depending on your computer, complete one of the followingprocedures.If you have a Dell desktop or portable computer:¡ Go to support.dell.com, enter your service tag, and download the latest driver for your graphics card.If you are using a non-Dell computer (portable or desktop):¡ Go to the support site for your computer and download the latest graphic drivers.¡ Go to your graphics card website and download the latest graphic drivers.Using the TiltYou can tilt the monitor to best fit your viewing needs.NOTE: The floating 'Dell - self-test Feature Check' dialog appears on the screen if the monitor cannot sense a video signal.