I am working for a company that has an older, 2002, release of LDD. We request for everything sent to us to be saved back to the older date, but it's still no fun at all trying to get a working drawing for construction lay out going. I have had luck with "edit"- "copy with a base point" " specify base point" 0,0 enter, "select objects" turn on and thaw all layers, window everything, enter, minimize and paste to a new drawing opened up with my older release, 0,0   and seems to be fine. This time the drawings sent that were saved back are full of xref's, and they dont seem to transfer over the same way?? must be a simple solution?? thanks  Dan Gilbert