Having strange issue with RX460 in combo with Media Center

Hi Guys,

 

I have purchased a XFX Radeon RX 460 2GB Heat sink (RX-460P2HFG5)  for my Windows Media Center.

I have connected the HDMI to the HDMI input of my LG OLED65B6V5.

I had Windows 10 running but due to this issue below, I downgraded to Windows 7 x64 Ultimate.

 

my issue

 

1) whenever I play a recorded show and I either Fast Forward, Skip, Reply or fast back, as soon as I press play, the picture becomes very very choppy.

when I stop the recorded show and press play, it is all normal again.

 

I have the latest driver installed, even tried minimal install. But to no avail.

 

How can I solve this?

(and I want to go back to win 10, if possible )

 

Regards Robert