Hi there, we recently updated our suite to 2013 (not recomended) we broke the company rule of waiting for the first update to be released before doing any upgrading, but we wanted to see if some of the new features would help with what we might be getting into. I know that 2013 has the new format that autocad updates every 4 years bla bla bla. All of the projects we are working use the old file format, so we save to the 2010 option. I have several lights that I created devices for in 2013, when this file is saved as a 2010, and brought into Navis or MEP 2012 all of the lights are inserted at the insertion point of the world coordinate system (under additional information in the properties box). Has anyone else had this problem? I have changed proxy graphics, blocked things, ex.... If you have found a way around it I would greatly appreciate it! Thank you to all of those who have sharred other information in this forum in the past!