The user may select the desired screen resolution and color-depth from the options presented.

...

Alternatively, for the Winx3D and NVidia drivers you may define a custom window size.

By default, 'Use NVidia Stereo Driver' is checked.
If you wish to use the Winx3D driver or OpenGL , select them instead.

If you choose OpenGL, you will be asked to specify the maximum texture-size of your graphics card.