Crop size of 3D view

[Viggen840]

Hi, I have just joined Sweet Home and trying for my first plan but I seem to have injected a problem. The plan works good, but my 3D view appears to have a very long rectangle much greater than the house plan. This has the effect of shrinking the 3D view to barely viewable.
Can someone please tell me how to get rid of the excess 'block' so the view is a better size?

[Puybaret]

I would suspect that you placed an object somewhere in the plan very far from your main drawing. To help you find it, choose Select all menu item and zoom out.

[Viggen840]

Found it! Thanks Puybaret - I now have a visible 3D image!!!