I'm doing some drafting for a client in ADT 2002. I have a drawing (Drawing 1) xreffed into a second drawing (Drawing 2), which is then xreffed into the drawing with the title blocks (Drawing 3). The problem is that if I don't open the drawings in that precise order--Drawing 1, then 2, then 3-- I get an error message saying that the drawing is already in use and do I want to open it as read only? I'm running 2004 myself and the problem doesn't arise, but I recall this problem from a couple of years back, and know that there's a variable or toggle I can set to get rid of the problem. Anyone know the answer off hand? Thanks Marc Clamage www.emasary.com