Do you have any hidden layers?
No, no hidden layers.
(That would have been too easy, huh? ;-)
I have also treid to package the document- same problem.
I have also exported from another pc running CS5.5 - same problem :-(
Is that one color bar spanning the spread, or two bars?
Uh.. it's one bar in the Master - right over the gutter.
In fact all 3 bars - grey, grey, red all go over the gutter!
Is this the point where I kill my graphic designer? ;-)
No, but try using individual bars instead. I think there's a bug that does this.
Ok, I used individual bars as you suggested and that solved 75% of the problem. Some elements were still appearing (apparently at random).
I decided to simply recreate the problematic Master and reassign it. Now everything looks great.
For those of you with a similar problem: I placed the bars 0,001 mm to the left and right of the gutter and that worked..... at last!!
Thanks to both of you for your help and advice.
Oh, and my Graphic Designer? I decided to pardon him .... (for the moment) :-)