As expected it did not last. And even if I now have the apparently correct settings, which I've learned is actually DMT timing, I cannot add them as a custom resolution. When I click on test it works, and then if I click on add it saves the wrong settings. If I click on no or if the timer runs out it goes back to the previous resolution. I have found only one way to set it to the correct resolution and that is to kill the Nvidia configuration utility process with task manager while in the testing period, which kills the timer.
You guys did warn me about third-parties... So is Zotac really, really bad? Or is it Nvidia that's awful? Is the problem with Zotac, the GPU, or the drivers?
Ok there are two things I did not try. I did not try running the configuration utility in administrator mode, and I did not try running it while AVG is deactivated. I'll try that next time I have to set the resolution, because it periodically goes back to 1024x768, for example when I turn the monitor off.