Ok. This should fry your brain, even if the upside down thing didn't.

So - I rotate everything the right way up, and it should all be fine, right?

Naaaah - not for this mouse!

Area 15 Version 04.jpg

Perfect, you think - what's wrong with that? What are you making all this song and dance about Mouse?

Well... draw back a bit and look down on the view...

Area 15 Version 04.jpg

Can you see it now?

I have a perfect copy, and its all the right way up now I've rotated it, but its a perfect mirror copy, as can be seen by the roads. Closer up I can see all the ridiculous details I modelled down to the door panels on the first tower. They are all mirrored - everything is the opposite way round to the way I modelled it.

How on Earth... There isn't a button for mirroring things as far as I can see!