A user selected resolution / refresh rate will be temporarily displayed if changed from the default and reverts if OK is not selected. If left in the resolution selection screen with no user selection, the resolutions and refresh rates will cycle through all selections and momentarily display each.
If a user has selected a resolution or a refresh rate which the TV does not support, the resolution and / or refresh rate can be changed using a computer accessing the WebIF interface.
Type the IP address into a browser. In the WebIF GUI select: Remote>>> Menu>>> Set-up>>> OK>>> System>>> OK>>> Audio / Video>>> OK>>> A/V Settings>>> OK.
In the AV Settings menu, change the Mode and / or the Refresh Rate to a resolution and / or refresh rate that your TV supports. Select the green button to save the new resolution and / or refresh rate.