InDesign CS4 rotated graphic content offsets

Question

Has anyone noticed problems with the xy co-ordinates of graphics within picture boxes when they're rotated?
I've asked Adobe Support about this, and uploaded a test file for them to look at but not had a meaningful response.
Firstly, my page crosshairs are correctly set at x=0mm and y=0mm.
If I draw a rectangle box anywhere on the page (the box position is irrelevant) and place a picture in it then select the content, the content co-ordinates are correctly displayed at x=0mm and y=0mm. BUT if I then ROTATE this box by, say 3 degrees, the content rotates with the box as expected and its position within the box doesn't change, but the content co-ordinates change to x=0mm and y=2.564mm. The graphic has NOT moved on the y axis, so why the apparent offset?
If I rotate the box by -3 degrees the same problem occurs - but this time, the y co-ordinate stays the same and the x co-ordinate changes: x=3.297mm and y=0mm. Yet the graphic APPEARS to be at x=0mm and y=0mm.
I'd be most grateful if anyone could shed any light on this please - it is maddening! BTW, I upgraded straight from CS2 (where the content measurements displayed correctly as x=0mm and y=0mm whatever the box rotation) to CS4.
Many thanks
Rosie

Answer 1

Was that box 49 x 65 mm?
There is sort of logic behind this. If you copy the picture "out" of the box (using the white arrow to select it) and then paste it again, so it appears into a
i new
box, this one is rotated as well. Depending on the direction of the rotation (and perhaps the selected proxy point), the top left coordinate
i has
to move -- either vertically or horizontally --, away from the 'edge' of the picture. If it did not, the picture would shear instead, angling horizontally and staying upright or the other way around.
The internal transformation of objects was changed for CS3, and this might just be that change: objects
i inside
are transformed along with their container.