So I have my Samsung 4k Monitor plugged into my video card (Radeon HD 7800) via HMDI (4k Ultra cord, in the monitor) with a minidisplay port converter. I have this so I have access to the max resolution of my video card with 60hz refresh. Now, the blu-ray disc will not play on CyberLink 12 anymore. It only shows a green screen. I tried using the free player Leawo and I have video and audio where CyberLink 12 will not only do audio. I would just switch to Leawo however it freezes alot of the time, clunky playback, it does this odd thing where it blends pixels together, and sometimes even takes minutes for the skip chapter feature to work. Is there anything I can do to make the green screen go away? If Leawo can show video, why can't CyberLink?