Looks alot like video card over heating...at least thats what it almost always looked like for me in past games over the yrs. Have you tried a fan speed app like rivatuner to increase fan speed on the card?
I use the CCC and the fan is on 80% and the temperature of my HD4850 is between 50-65 C° (122-149 F°)
MMM does this NOT turn up in other games? If so I fear your card is burned partly or running at too high clock.
If its only for ETW then its probably also overclocking going on.
If you didnt overclock I would better reinstall your drivers asap.
These are artifacts in your 3d renderer. not good.
Seeing this means something in your GPU is going all @$#%&#$
Maybe it could just be directx or drivers, however when I saw these type of things in the past, it was not good.
Good luck.
This problem just happens in etw, and the gpu don't have over
Did it ever work for ETW?
What card have you got?
Have you got the lastest drivers?
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