Hi. I've just installed SweetHome3D for the first time and I'm taking my first steps in using the program. However, I cannot seem to get the 3D Aerial view to be centred within its window. Whatever I draw appears all the way over to the right side in 3D view - very often cutting off half of my building as it is outside the window.

Is this a bug or am I doing something stupid ?!

Thanks !

e.g.