Hello Forum ! I have a XFX Radeon HD 7970 GHz Edition card in my desktop. I recently bought a Samsung UN65jJS9000 SUHD TV that has 4K resolution. The problem I am having is that I cannot get 4K resolution on the monitor. Even though I changed the resolution in my desktop to 4K it's still not displaying it. Sometimes the picture is frozen or it shows me half black screen and the other half of the screen my Windows 10. So I don't know really what is going on. My TV works like a charm when I am watching regular TV, but when I hook it up to the computer it sometimes doesn't produce good picture quality like watching movies from a computer, etc. Could it be that the Radeon HD 7970 doesn't support 4K ? I have my desktop connected to the TV with a HDMI cable, so there is sound, there is everything... but the screen is not displaying right. Any help would be much appreciated.