We are still using 2006 but will probably upgrade to 2008 when it gets
here. (couldn't install 2007 as our Ricoh printer took too long to
update drivers...).
So, has 2007 or 2008 solved the issue where multiple xrefs on the same
level interfere with each others walls when added to a sheet? You know,
becuase they just stack everything at 0,0 or whatever when added to a
sheet and the wall cleanup info interfered with other xrefs..