Our projector screen family shifts 100ft forward when a project is upgraded from 2008 to 2009. Granted this is a rather old family (a bit clunky), but was still created in 2008. I checked and the family still has the origin defining reference planes in the same locations in 08 and 09.
The attached project is in 2008. You will see the difference when it is upgraded to 2009.
Any ideas or reasons why? Has anybody else come across anything similar?
Nick