CorelDRAW Graphics Suite X6 :: Vector To Bitmap Conversion Inaccurate

I'd like to create a vector graphic with precise object size and placement so that when I import into PhotoPaint I get a precise conversion.

For example (use no outlines):

make a black square 10mm in diameter create 9 colored squares 2mm in diameter placed 1mm from the edge of the black square and 1 mm from each other copy all your squares paste into photopaint setting size to 10 pixels square and turning anti-alias off what you get is not what you drew in corel draw 

Here's my example as a vector: 

and as a bitmap:

So the squares are completely the wrong size - 1 pixel larger than they should be and in the wrong position!

Interestingly if you import the same vector as a bitmap 100 pixels square it looks better - however you'll notice that the colored squares are, in fact, 21 pixels square and not 20!

The conversion process seems to make every object larger by one pixel in each dimension - not useful. I should note that this effect happens in X5 as well.