The recent thread talked about .brd file incompatibility, but what about footprints? So far I have been afraid to edit footprints in 15.1 for fear they would not be backwards compatible. I have already determined that v14.2 footprints work just fine in v15.1 .brd files. For those of you running multiple versions, do you have a library method? Patrick Westfeldt, Jr. North Boulder Circuit Design westfeldt_nbcd@xxxxxxxxx 720-406-0887 c 720-272-5822