I have a Gigabyte RX460 4GB graphic card. I installed the new driver (16.9.1) but it didn't slove my "Pixel format" problem: when I set 4K@60Hz I can't change "Pixel format". I have Onkyo TX-NR636 receiver and Samsung UE55JU7000 television. I would like to set "Full Range RGB" but I can't. Please help. Thank you.