Hi, every time I cast something to the TV, I get a message saying ...... "Screen Casting is not optimized for this device; your experience may vary". What end up happening is that no matter the size of the TV, the display does not use up the entire TV screen. However, when I use my Samsung phone to cast, it utilizes the entire screen. I've looked at the manual but can't find any reference to optimizing. Is someone familiar with this? Thanks for your help.