Problem video on minix x7

[onion19]

hello, I'm new to the forum. I recently purchased a "neo minix x7".
I have a problem and ask for your help. When I see the video on youtube or video on standard video player i se e the lines pink and green on video. With MX Player using the "decoder s/w" video is good. But on youtube you continue to see bad. what's the problem? how can I fix it? thank you in advance. and I apologize for my bad english, I'm Italian

[onion19]

[virusX]

If your software decoding is working and any hardware decoding enabled player is giving you the same result it's probably a hardware issue.
But it looks also like a bad codec behavior. Some players allow you to install new codecs.
Try to install and test some other video players with hardware decoding enabled (I'm using Archos Video Player and MXplayer).
Which firmware are you using btw?