This article will show how to configure the output display resolution on a WinBook D5008DH DVRHere is how to do this:1. Right click on the preview screen and click on Main Menu. 2. If prompted to login, select the admin username, enter the password and click OK. The default password for the account is 123456 if you have not changed it. 3. Click on Output. 4. Click on Display. 5. Click on the Output Config tab and select the desired resolution in the Output Resolution dropdown. Be mindful of the supported resolution of your monitor. if you select a resolution not supported by your monitor you will not get an image and then you will need to connect a monitor that does support the selected resolution to resolve the problem.