I had a problem with a drawing that would go through all the motions but not save the file. I found I had to recover the drawing, purge Unnamed Objects and then I Purged All. It may be a shot in the dark, but FYI.
Go back to 2010 and use AecObjExplode, and then saveas 2007.
Matthew Anderson, PE
> Tried a recovery on the drawing.. and purged everything in the drawing. Still having the same issue...
> Tried auditing the drawing as well.. still missing the same stuff when exporting.