I have a problem with ascii art

I am trying to get diagonal lines to work
they work fine at the top points but the bottom points
dont join to the lower line.

Is this funcionality not finished yet?

       +-------------------+
       |    Management     |
       +-+-------+---------+
      /          |         \
     /           |          \
 +--+----+  +----+----+  +---+---+
 | logic +--+ content +--+ style |
 +-------+  +---------+  +-------+

               /\
              /  \
             /    \
            +------+

Also it seems that the top right diagonal line should be one space to
the right, however it doesnt join up like that!

Andy Bailey