signa-printready error!

Hi all!

I'm having a little problem with signa and printready.

Every now and then,when i'm importing an older layout to a new job,or even sometimes when i'm creating jobs with autosheet function,page geometry isn't ''respected'' from printready or signa,and pages are not centered to their places.

I've uploaded a sample to help you see what i mean.

https://www.dropbox.com/s/5qlf2lp4ms...-turn.pdf?dl=0

Thats in prepress manager/signa 11

It doesn't happen all the time and i have not yet managed relating something with something(pdfs created with that software or layouts created with some common characteristic)

Any ideas?

Thanks in advance!