Save as "AI" ~ any options?

Our Art Department just informaed us that the AI files we have been sending are not coming in on their end as a 1:1 scale.

I do not see where they are any configurable options when saving as AI.

Any advice or input as to what may cause the non 1:1 scaling?

Thank you in advance.

Alan

SW 2009 SP 5.1

SolidworksImport export