Not sure how, but from one user to the next, assembly files are getting changed, especially with regards to PEMs.  We had PEMs that got changed completely (went from a 4-40  and a 6/32 to a 10/32 PEM), and we had others that flipped from one side of the assembly to the other!  Now we've ended up with parts that are completely useless, because the drawings were close enough that it wasn't caught before we had some made.  Any thoughts would be greatly appreciated!!