3D Vision question

[Hephaestos]

I did this in a dark room... but I have dual screen and my second screen is blinking as if it was also rendering 2 images (yet it's a 60Hrz screen so it can't), I use it to monitor my temperatures.
I also have my computer that's lit up (in blue with the fans).

With your explanation though I guess it is my second screen that makes the glasses reset, I'll have to see if this is still a problem without it turned on.

Thanks!