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I installed the graphic card driver:

enter image description here

But Unity is still in 2d mode:

enter image description here

How can I bring it into 3d mode?

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up vote 0 down vote accepted

That is Unity 3D (if the screenshot you posted is accurate, that is).

The 3D part simply means that it uses OpenGL (it doesn't mean it's literally 3D).

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But according it's not 3d!!!panel icons have background and I don't have a smooth animations... – Mohammads Apr 20 '13 at 2:13
@Mohammad, Yes, panel icons do have a background in Unity 3D (I can confirm this), and the reason why you don't have smooth animations is that your computer and/or graphics card is slower (well, TBH, it's technically unity's fault, but I won't get into that). Also, look at the dash. It has NONE of the features in Unity 2D (therefore, it's unity 3D). – MiJyn Apr 20 '13 at 6:21

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