Printing A4 1:1

Just installed DS x64 2015 on Windows 8.1

I removed the previous version before installing the new one.

I draw a rectangle 210 × 297 mm ( A4 ), and I draw a cross from corner to corner.

I am printing in on A4, 1:1, center on paper.

Why does DS set the offset to -5.08 mm, both X and Y ?

Printing with that offset, the cross is way off center. Printing with 0 offsets, it is way off.