Originally Posted by pokoy
Regardless of your graphics card, 3ds max can use different graphics systems. The one that's used by default is Nitrous and is what causes 4-sided polygons to be displayed that way, at least I remember there were many people complaining back then.
I'm quite confident the following will solve the issue, go to the menu, choose:
Customize > Preferences > Viewports > Choose Driver > Direct3D > OK > restart max
It hopefully works like expected then.
It's funny that most people forgot about this issue as it was one that caused many people to moan. I'm not sure if it has been resolved with the Product Updates they've released for max 2012 but I don't remember seeing it anymore in 2012 so it could be that they actually fixed it. If you didn't install the PUs it might be worth trying as well.
that was amazing!!! exactly what I wanted, it solved the problem, thank you so much.
Actually it had DirectX 9, and it was so slow, but I switched to OpenGL and it did magic!! perfect, look how it changed the whole thing and it's a lot faster.