2016-04-22, 10:16
Those builds change the display driver, yes. If you disable "Adjust Refreshrate" that issue will disappear, cause your TV changes its overscan / underscan when the refreshrate changes. You might need to "reselect" PC when that has happened. Also make sure there are no calibrations left in your guisettings.xml. So if you have manually calibrated the screen, go into the calibration and press "d" for delete.
Which TV model do you have? Attached via HDMI?
Which TV model do you have? Attached via HDMI?