This may be an extension of my previous post.
Same titleblock as before, but now, while I can now get the titleblock to insert into the drawing, it doesn't insert as an attributed block. When you double click on it after insertion to edit the fields, it just opens up the regular text editor.
However, again, the exact same block inserted from the Tool Palette works perfectly.
This might be a clue though... when inserted, it looks like there are two blocks with different names. Again, this is a brand new drawing, so there are no blocks in here prior to insertion:
Could this be the "block within a block" thing?
Any ideas?