This is a ridiculous solution.I use 2007 ADT so I have to save down to 2000 versions for my DWG.These files are then worked on by some users using 2006LT.They get this ridiclously long loop of an error message saying an ARX error occured.One way to get rid of the message quicker than a couple of mins from pressing return is to hold down ESC.Were also notcing that there are now sissues with the 2006 Lt trying to insert XREFS that were previously saved down from 2007 to 2000.They get an ARX error message and no matter what they do the XREF would not insert.Im also still having issues myself with 2007,still unhappy with it(I can walk on my hands to the plotter with my eyes closed quicker than the plot dialogue box comes up),might have to be removed.