I have a new Windows 10 Chuwi X10 Tablet PC (2-in-1) which has higher specification than my previous machine and in most respects is working well, but I am unexpectedly getting a major problem with streaming, for example YouTube videos, Frequently it is unusable because the display changes to a multi-coloured curtain of slanted stripes. I have tried changing the resolution to a variety of lower settings (as well as cleaning RAM and stopping other programs from running).

I had no success with this. From way back I recall some advice about Hardware Acceleration being set to 'on' or 'off' but what I have now read I have not understood. How do I tell if HA is 'off' or 'on' with my machine and with Opera, which should it be (what I have read seems self-contradictory), and how do I do it?

Clarification regarding this would be welcome, plus any other suggestions.