Odd background to saved image

Hi,

 

I have a  strange problem
I need help with.

 

When I save an image out using the screen display style I
seem to get some odd models floating in the background of the image, see
attached images.

Changing the output resolution changes the way they a laid
out. You need to render with a high resolution to see this, around 3000 pixels
or above.

This does not happen when the display style is set to not
show shadows.

I created a new file and imported the saved view (and
created a new view ) and it still happens. I’ve attached the file.

I does not seem to happen with every view.

 

The same happens on different machines under different
logins.

 

V8i SS3_08.11.09.459

 

Please help!

Many thanks,

 

Richard