This is the only way Samsung will know they issued a bum update.
In the USA it's 800SAMSUNG. For other countries start at Samsung.com.
The software on my Smart TV was updated today. When finished the size of the picture shrank with a large black frame around it. When I when to the menu and picture, the choice titled "Screen Adjustment" was greyed out. after going through every choice on the menu and sub-menus. Finally, by accident, I found a solution. I hit the "source" button" which brings up the source choices. Mine is on HDMI1/DVI. At the bottom of the Source menu is a choice "A Refresh", press A on the TV remote. This brings up a window that says "Refresh" On mine, it came back "Device not found" I don't know what that meant so I ignored it but when I went back to the Menu - Picture the choice "Screen Adjustment" was no longer greyed out. I went in and chose the picture size "Screen Fit". It solved my problem, the TV di8splayed using the full screen.

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