Thanks Robert B for the answer on the Leader Line Question.
Here is another frequent occurance with ACAD2008. Trimming of lines with an Xref behind it. Not sure if it is because of the Xref , but when I try to trim lines quickly, AutoCAD2008 crashes. It happens too often in our office just to say "it was an accident". Cheers and thanks. ps. I also have issues with the "unreconciled layers message". was that really something we needed?