i took a closer look at your image and now see what you are referring to.
are these the only walls in this model - (are there other walls above or
below these on other levels?)
how were the walls created? 2pick or single from a linked file? maybe
single pick from walls below?
the behavior you question seems to be related to something we can't see.
one would need to know more about the model to help you here.
--
Brian Earsley
www.arete3.com
18645 South West Creek Drive
Tinley Park, Illinois 60477
708.342.1250 x.225
wrote in message news:5713929@discussion.autodesk.com...
But the walls aren't adjacent.