After doing some experiments I eventually came to a solution - the problem was a correct zero point 0:0 - once I manually inserted 0 and 0 in X and Y fields - the plan import was OK.

Hello guys!
I have just installed SW 3D and I am facing this problem so that I cannot even start drawing - while importing a backgroung image it is imported in a badly cropped way - actually a small piece of an original picture is available at the final stage.
Please help.