Your problems get really strange I had never tearing with construct either in browser or in NW.js. Can you set all settings back in your graphic card driver to default an try again?
Is it possible that you try another graphic card, maybe it's really a hardware problem or you could try at first another monitor-cable that's very unlikely that's the problem, but I'm really out of ideas.
I tried 2 different monitors with 2 different cables. No difference there.
I have set the graphic card settings to default a couple of times inbetween dialing up/down different settings.
Different graphics cards - unfortunately I have no such possibility, but you are right, that would simplify a lot and help troubleshoot if the problem is with the graphics card itself.
It would be nice to find another person with a Geforce GTX 960 to verify that its only me that is having such problems with construct 2.
But it seems that its not only me that is having such issues:
EDIT: Time to format my computer again, Im getting wierd artifacts in the browser with Firefox, I think the Windows live updates $(&@$ my computer up. But that cant be the issue I dont think, since I had problems before the updates, and I tried to remedy them by installing the updates. I hope its not a case of my graphics card and the Windows version, because Im not moving onto Windows 8 or 10.
See you after reformat.
PS. Do you think that it could be that my hard drive is too slow?