Hi Anton,

> Ohh, it's not only rotating. It's rather navigating if your view
> is horizontal to the grid/if you are looking at the grid from a side
> within the 3d-view. Things are going worse the more you get
> into this view angle.

The default rotation mode for MoI is to rotate around the world z axis.

Maybe a different rotation style is what you are looking for - there is an option for changing that under the Rotate/Pan/Zoom options:



Try changing that to Rotate style = Free rotation and see if that behaves more like you want. That causes the rotation to be around your local viewing frame of reference rather than having it oriented around the world z axis.


- Michael