Finally update to Win 8.1, crappy internet connectinos are crappy.
Everything still run smooth, no drivers problems.
In the case of Nvidia, the 3D stereoscopic , was activated like by default, the kind of 3D that you have to use the two color glasses.
Correction: simply turn it off in Nvida Control Panel
But some things annoy me,
1) If you want to use the mail app you have to configure your live account, something that I don't really like it, because I'm not the only one who use my PC, and I should have to give them my password.
2) When you have 2 or more monitors, if you open the start screen in one, and pass to another monitor, the start screen, keeps visible in the monitor that you open it, is not really a problem, at least not for me, but I'm no sure if is correct that it do that.
3) If you open a link in a Metro App, example Mail or Facebook, it supposed to open the Metro IE, but it doesn't, it ejecute the proccess, but don't show the window until you open directly from the start screen, when you do that, it opens with the link that you opened in the other app.
Other than the previous notes, everything run nice, no problems with compatibility of any kind or have to reinstall applications.